My official Favorite Movie is "What's Up, Doc?", a 1974 Barbra Streisand comedy. I've never met anyone in real life who has ever even heard of it (aside from the people I have told about it, of course). Probably the only reason I know about it is because my parents saw it when it was in the theater and they enjoyed it.
And by the way, Streisand made some other comedies around that time period that I thought were pretty abysmal...