I have to say I'm glad the Vacation reboot movie is getting some of the worst reviews of the year. Judging from the trailers, there really isn't nothing in the movie that wasn't done better in more funnier gross-out humor movies like There's Something About Mary or Knocked Up.
It's also very bad to see that Rusty Griswold, who always seemed to be smarter than his father, Clark, basically a Melvin like Ed Helms. Even the nerdy geek Johnny Galecki (Christmas Vacation Rusty) plays on The Big Bang Theory would kick new Rusty's ass.
Looking back at the original National Lampoon's Vacation released on July 29, 1983, it was a perfect mixture of slapstick and dark humor. I'm an animal lover but even I laughed at the scene between Clark Griswold (Chevy Chase) and a Colorado motorcycle cop (James Keach) over the death of Dinkus, the mean mutt dog belonging to Aunt Edna (Imogene Coca). Part of what's funny is the idea that a simple mistake resulting in an animal's death and watching Clark try to cry and talk his way out of a ticket. Ironically, the filmmakers say they got a lot of flak over this scene but other people say that they themselves have made the same mistakes.
The original Vacation was envisioned by writer John Hughes as a coming of age story focuses on Rusty (Anthony Michael Hall) as he observes his parents on a trip from Chicago to Florida. The Christine Brinkley character was supposed to be a teenage girl Rusty keeps bumping into along the trip.
Chase and director Harold Ramis decided the Clark Griswold character should be the main focus and they should switch the trip from Chicago to Los Angeles to take advantage of the scenery through the western part of the state, such as Monument Valley.
Getting Chase to play Clark wasn't initially liked since Chase was known at the time to play suave sophisticated characters. Clark isn't. Clark is a food additive designer, something that would require a lot of book smarts. Clark probably has a Master's or even a Ph.D. But he is too smart, he's dumb. Clark lacks all common sense logic and street smarts. When Clark's old car is flattened into a pancake and the shady car salesman (Eugene Levy) tries to sell him the Wagon Queen Family Truckster, a car he didn't order, rather than call a lawyer or at least as to speak to an owner to get a loaner until the new car comes in, Clark takes the car. Why? Because he avoids confrontations at any turn.

He is tricked into taking Aunt Edna with him to Phoenix, even that wasn't the original plan. Why? Because it's family and Clark and Ellen (Beverly D'Angelo) wouldn't say no without being made to feel bad. When he is forced to pay hundreds of dollars to sleazy mechanics, he does so even though all he really has to do is just run and get in the car and drive off. Also, the mechanic pulls out a sheriff's badge, but really, he's probably just a part-time or reserve deputy and this is probably a scam they pull.
Or take the scene in which the Griswolds get lost in the bad part of St. Louis, where there are tricked into pay $10 for no directions out of town and lose their hubcaps, again, Clark is too dumb for his own good. Clark is too busy being too nice that when he sees Cousin Vicki (Jane Krakowski) sticking her hand and arm in a pitcher to stir Kool-Aid, he just asks her if he can help because the thought of someone using their hand to stir something is just gross.
Krakowski said she thought up the idea while filming the scene as it was supposed to happen in the background as Clark and Cousin Eddie (Randy Quaid) talk. Chase noticed what she was doing and so did Ramis, who did a close-up scene,
At the end of the movie when Clark, finally having enough of being taken advantage of, takes a Walley World security guard (John Candy) hostage with a BB pistol. The way Clark acts and just the idea of Clark buying a BB gun rather than a real handgun shows that Clark isn't willing to go all out.

What makes Vacation so funny is that Clark is wanting his family to have a perfect road-trip vacation but oblivious to the fact that his kids don't want to go and his wife would just rather everyone go with the flow. Look at how the Griswalds can't even back out of their garage without a problem happening. In this case, they packed the luggage too high on the rack that it doesn't clear the raised garage door.
Clark doesn't even bother to look over the new car to see where the gas tank is.
And things like this happen to all of us. That's part of Vacation's appeal over the years. People can watch it and say, "Oh, yeah, something like that happened." We've all gotten lost while traveling or stayed at motels or hotels that weren't that great.
Clark wants to stick to a schedule but doesn't realize that the best part of a vacation is not adhering to schedules. Sleeping late on a weekday or drinking a few more beers or glasses of wine on a weeknight.
Things fall apart for the Griswolds because Clark doesn't realize no one is having fun even though he wants them to have fun. He is like a telemarketer or customer service rep still reading a script even though the caller has asked to speak to a manager or told them they're not interested.
This leads him to break down and at a crucial scene where everyone is showing their displeasure of the trip, Clark bluntly says to his family, "I think you're all fucked in the head."
Part of Vacation's joy is that it doesn't hold back. There are jokes about implied incest between Cousin Eddie and his daughter, Vicki, the discussion about the death of Dinkus and of course, the scene where Aunt Edna dies and she is placed on top of the luggage rack in what is obvious the shape of a person. Reportedly, before filming began, Chase or Ramis quickly put Edna's purse with her just to add a little hilarity to the craziness.

Originally intended as a PG family comedy, Ramis decided to shoot scenes for both a PG and R-rating to see what was better. The "fucked in the head" rant where Clark goes on a profanity-laced tirade talking about being a "pilgrimage to see a moose."
Vacation, unlike other movies at the time, was actually filmed on location, something that didn't sit well with Coca, who had a fear of long travels by car. Coca had been told by her agents that most of the scenes in the car would be filmed on a soundstage. That wasn't the case as they were filmed on the road as the car was being towed. Coca's health reportedly caused problems as it is believed she suffered a minor stroke or at least a "senior moment" as she had no recollection of the earlier day's filming.
Hall reportedly had a crush on Dana Barron, who plays Audrey, Rusty's sister, and that led to a good rapport between the two while filming. Hall also tried to sneak on the set when D'Angelo filmed the shower scene, but Ramis, who had a closed set during a scene on Caddyshack with Cindy Morgan, did the same thing, not knowing D'Angelo was more open about her body and on-screen nudity.
And like the movie, there were problems that arose. During filming of the parking lot race scene, both Chase and Hall suffered heat exhaustion. There was a scene of the Griswolds packing luggage that was filmed on a hot day and caused Chase to lose it when the luggage fell down and throw a prop suitcase at Ramis.
And the original ending was so bad, it has been scraped and never released. The original ending has Clark purchasing a BB gun and tracking down Roy Walley at his home where he holds Walley and some business men there hostage making them dance. Then, the Christine Brinkley character shows back up and it's revealed she is Roy Walley's daughter. After some discussion between Walley and his daughter, he decides not to call the police and then sends the Griswolds home on a plane.
This scene was so poorly reviewed that one of the filmmakers described the test screening as 80 minutes of laughter followed by 15 minutes of silence.
Chase said he was one of the few people who still have a copy of the original scene.
The producers went back to Warner Bros., the studio making the movie and begged for more money. Hughes was paid to write a new ending because the general consensus of the test screening was the family never got to ride any rides and they felt let down and cheated. Candy was hired, reportedly at a $1 million paycheck, to play stuffy guard Russ Lansky. Hall had reportedly grown six inches in the interim of filming and was taller than D'Angelo, leading Barron to be upset because it was implied Rusty was older than Audrey. This caused Hall and D'Angelo to be filmed so you couldn't see the height differences.
When it was released, the movie was a critical and box office success despite some complaints about the deaths of Dinkus and Aunt Edna being shown for laughs. Reportedly, civic leaders in Compton, Calif., didn't really care for the St. Louis scenes and tried to have theaters boycott the movie, Christopher Jackson, who plays the pimp, who tells Clark "Fuck yo momma!" when he asks for directions had friends who picketed the movie over this scene.

The legacy of Vacation led to a sequel National Lampoon's European Vacation, which led to both the roles of Audrey and Rusty to be recast when Hall was unavailable for filming. This would go on to be a running joke in all Vacation sequels and used in an Old Navy commercial.

And while the debate remains which is better, the original Vacation or Christmas Vacation, it's apparent, there would be anything if not for the original Vacation.
Maybe if the filmmakers decide to do a sequel to the Vacation, they'll recast Audrey and Rusty again. Anyone except a Melvin like Helms.