* MagnumOpus: Creator/GeorgeLucas ''thought'' this award-winner would be his. After this movie's success gave him official cred as a real movie producer, ''Franchise/StarWars'' was a fun "throw-away" project nobody (including him) expected to have more than a niche audience. The narration in original trailer for ''Film/ANewHope'' called Lucas "the man who brought to you ''American Graffiti''".
* SeinfeldIsUnfunny: Fifties nostalgia, now old hat, was still a pretty novel subject for a film in 1973.
* TearJerker: Finding out the fates of John Milner and Terry the Toad(unless you've seen the sequel) in the epilogue.