Mars Attacks! (1996)
The only thing separating Tim Burton from Roland Emmerich in 1996 was the level of irony and self-mockery. As a clear homage to the sci-fi B-movies from the '50s and '60s, Burton throws himself into all the narrative and thematic cliches he can remember from said period. Whereas Emmerich failed in creating something original with Independence Day, Burton clearly states his disinterest in originality and predilection for nostalgia and excess (best exemplified through one of the world's best in this respect, Mr. Tom Jones). Mars Attacks may well be ignored and forgotten among critics just as quickly as the films upon which it is inspired, but it's nevertheless a fun film which also sends Hollywood a message about not taking itself too seriously.