In her social media tribute to Smith, Goldberg briefly recalled her time working with the late Harry Potter star. The pair starred together in 1992's Sister Act and the 1993 sequel Sister Act 2: Back in the Habit, in which Goldberg portrayed lounge singer Deloris and Smith played the memorable Mother Superior.

Whoopi Goldberg is paying tribute to the "brilliant" Dame Maggie Smith. Shortly after Smith's sons, Toby Stephens and Chris Larkin, confirmed the news of her death at age 89 on Friday, Sept. 27, Goldberg shared a heartfelt message about her late Sister Act costar on Instagram,

Whoopi Goldberg starred alongside Maggie Smith in the 1992 hit family comedy, “Sister Act,” and the 1993 sequel, “Sister Act 2.”