Anytime a comedian takes on a frantic role and nails it.

Off the top of my head….

Robin Williams: Dead Poets Society (and many more, I think that was his first) Bill Hader: Barry. Jim Carrey: Eternal Sunshine of the Spotless Mind

Man, Robin Williams can get to me like no one else. There were moments in Good Morning Vietnam, a couple years before Dead poets, but GMV was def more focused on his big comedic personality. Then his performance in The Fisher King…I don’t generally get emotional about celebrities but that dude was different. There’s been a few musicians that have been much better than expected. Dolly Paton in 9 to 5, Madonna on A League of their Own, Prince’s acting in Purple rain. Ice Cube in Boyz in da hood.