The Money Pit, with Tom Hanks and Shelley Long trying to remodel their house. Especially that one scene where Hanks is trapped in a carpet in the floor.
National Lampoon's Class Reunion, written by John Hughes, it was a real howler for preteen me, I wonder if it holds up now?
Young Doctors in Love, a spoof on doctor shows, some really funny scenes with Harry Dean Stanton and a young Michael Richards. See it also, if you ever wanted to see Hector Elizondo dressed as a woman.
"Cold Turkey" (1971)-after the tobacco industry loses TV advertising, they try to revamp their image by offering any small town that can stop smoking for 30 days the sum of $25,000,000. Eagle Rock, Iowa accepts the challenge. Dick Van Dyke plays the town's pompous minister while Bob Newhart is the tobacco companies' dirty tricks man trying to get the town to smoke before the 30 days. Since the movie was directed by Bud Yorkin, Norman Lear's production partner, several actors who appeared in in Lear's shows are in the movie (Jean Stapleton, Paul Benedict, Vincent Gardenia). Comedy team Bob & Ray have a running gag as parodies of various famous news reporters ("Walter Chronic", "Hugh Ups). Well worth seeking out!
Smile (1975)--a year before he made The Bad News Bears (the BEST film of 1976), director Michael Ritchie made another film about the exploitation of young people with a similar mix of subtle comedy and deep cynicism. This one was about a small-town teen beauty contest, with the emphasis on displaying the wholesomeness of the future women of the 1970s. Like the later film, it shows the unwholesomeness, greed, shallowness, and phony displays of patriotism that drives the "meat shows" of the beauty pageant culture (although the more recent kiddie pageant shows depicted on reality TV show the even more sinister side of this stuff). Like The Bad News Bears, alternately hilarious and sad.
The Tall Guy (1989)-- Jeff Goldblum plays an aspiring stage actor who's stuck playing the deadpan sidekick of a "beloved" comedian played by Rowan Atkinson (and possibly based on Atkinson?). He eventually gets fired from the thankless role and gets his big break--a starring role in "Elephant!", a misguided stage musical based on The Elephant Man. He also meets a nurse played by Emma Thompson, and some comic sex scenes ensue. If you've never seen two pairs of underwear make love, this film gives you that spectacle. Very funny.