4. "Rat Pfink a Boo Boo" - Rat Pfrink a Boo Boo (1966)
Little-known comedy flick (and Batman & Robin parody)
Rat Pfink a Boo Boo doesn't contain a spelling error in the traditional sense, though the bizarre title is actually the result of a spelling mistake that was simply never changed: according to director Ray Dennis Steckler, when the titles were being put together, somebody forget to include the letters "nd" after "a." Told that he'd have to pay $50 to change it, Sticker evoked to leave it as it was, 'cause who cares, right? So when everybody went to see the movie, they were completely unaware that - staring at the title screen - they were looking at a great, big spelling mistake that was left in 'cause the director didn't want to part with $50.