Maggie Smith!!!
Of course everyone thinks of SISTER ACT and they think of Whoopi Goldberg, who was very funny in the movie of course.
But Maggie Smith is awesome too as the Reverend Mother. She and Whoopi work together remarkably well...really they have amazing comedic timing together.
What an unlikely pairing that paid off well. Maggie Smith is hysterical in some of her films...she's supposed to play it straight here but even when she plays it straight she's funny.