Longest Day was from 1962 about D-day, and it had one of the biggest all star casts of any film in history, John Wayne, Sean Connery, Robert Wagner, Paul Anka, Richard Burton, to name a few. Most expensive Black and White film ever made (and done to save money in production!)
A Bridge Too Far, 1977 Film about Operation Market Garden. Another big name cast movie, and an excellent war movie.
Blazing Saddles, 1974, Mel Brooks and Gene Wilder movie, fantastically hilarious western.
Young Frankenstein, 1974 again, Mel Brooks and Gene Wiler, of course, makes fun of Frankenstein, and I actually had the pleasure of getting to see the film on the big screen at the classic movie theater in my home town. It's really fun to see a classic on the big screen if you can get the chance.
Ungh, I just have to throw it in even though the cutoff is 1990, but the movie came out in 1990 so it was made in 89...yeah, that's a stretch but I don't care. It's my favorite comedy sci fi movie of all time:
Spaced Invaders. Martians crash land in a small town on Halloween because they hear a War of the Worlds Broadcast. It's extremely funny to watch, and the special effects are hilarously dated (but still adequate, all things considered)
