Not only does [King] don Chisholm’s clothes, adopt her hairstyle, recreate her distinctive smile, and attempt her Bajan-tinged accent, she digs at the core of who Chisholm was in that moment—principled and fearless.

"Shirley" plays like the last episode of a four-part TV series, and a pretty good one at that.

Regina King, also a producer of the film, is an inspired choice for the role, and her Shirley is made up of endless strength, kindness and courage.

If you're interested in learning about someone who might not have been covered in your history books, it could be an enlightening watch.