If you are looking for movies like And now for something completely different... these could be interesting candidates. The closer two names are, the greater the probability the two movies are similar.
And now for something completely different... Female Troubles Pink Flamingos Desperate Living Female Trouble Multiple Maniacs Polyester Mommie Dearest Take The Money And Run Rollerball Conspirators of Pleasure Smiley Face The Incredible Shrinking Man Beyond the Valley of the Dolls Grey Gardens Whatever Happened to Baby Jane Baby When Worlds Collide This Island Earth Walk Hard Women On The Verge Of A Nervous Breakdown Mambo Italiano Quatermass Zelig Mommy Dearest Tie Me Up, Tie Me Down The Day The Earth Stood Still Forbidden Zone Forbidden Planet To Wong Foo Auntie Mame Invasion of the Body Snatchers Hairspray The Return of the Living Dead American Movie True Stories Spider Baby Ichi the Killer Paris Is Burning Society Ma Vie En Rose But I'm a cheerleader! Elvira Mistress of the Dark Coffee And Cigarettes The Room Animal House 13 Going On 30 Repo Man Nymphomaniac