Richard Gere in the Cotton Club as someone who can't act was an example of what G.B. Shaw called "stereoscopic realism." Redford as a military man in The Last Castle, or anywhere else.

I was afraid when I heard Holly Hunter would play an Australian in The Piano, then found out the character was mute. Whew. She managed a few lines in voice-over--they must've digitally removed the accent.

Robert Blake as a killer in In Cold Blood--um, nevermind.

The cookie monster as Yoda. Hmgggmm?

Jeremy Irons as Humbert Humbert--he tried not to do it, saying he'd done the European Weirdo enough. Good instinct. Should've tried Malkovitch, his style.