How can you have a quiz about Bill Murray films without using the phrase "Hilarity ensues" in at least one of the questions? That's downright disrespectful!
I've seen about half the movies on this list, and they run the gamut from amazing (Ghostbusters) to good (Caddyshack, Groundhog Day) to silly but fun (Charlie's Angels, Space Jam, Zombieland) to weird and overrated (Lost in Translation, Royal Tenenbaums).
Osmosis Jones?
I think he was a patient in Little Shop of Horrors as well (That one i gotta double check)