This was a couple of decades ago, so I may be fuzzy on the details, but I believe it was Entertainment magazine that had a list of the one-hundred funniest movies of all time. I forget where it was ranked, but Buckaroo Banzai was in the list. And the blurb opened with, "Is it possible to make a cult film on purpose?" Apparently the answer is yes. Some films are born to cult greatness, some films achieve cult greatness, and some films have cult greatness thrust upon 'em. Buckaroo Banzai is all three.
Side note: Airplane! was number one on the list.