Sir John Gielgud, as Boo Radley in To Kill a Mockingbird.
William Shatner in The Day the Earth Stood Still.
Ann Coulter as Nurse Ratched. (Those patients would be begging for their lobotomies.)
It never occurred how much she could make anything into a horror movie:
Ann Coulter as…
Mary Poppins
Blanche Dubois in Streetcar Named Desire- set during and post-Katrina
Anna in The King & I (new ending: she kills his wives, converts him to Christianity, and eats his children)
Anything she could transform. Cool. She may have some use after all.
Jerry Lewis as Maximus in Gladiator
Georgia Engel (Georgette from The Mary Tyler Moore Show) as Pontius Pilate
<shudder> That’s just . . . wrong! 
“How do you keep that wig on when you fly, Annie Poppins?”
“What wig?”
“Oh . . . sorry . . .”
Kevin Costner as Hamlet
Nobody *but * Gary Coleman, and I mean that in a bad way.