The Toronto International Film Festival, starting next week, sees the debut of more than its fair share of awards-worthy films. One of these is certain to be Mira Nair's true tale Queen of Katwe, which stars Oscar winner Lupita Nyong'o as the mother of Ugandan-corn-seller-turned-chess-prodigy Phiona Mutesi (newcomer Madina Nalwanga) and David Oyelowo (whom many thought was Oscar-snubbed for 2014's Selma) as the girl's mentor. The movie premieres at TIFF on September 10, will be released in select theaters September 23, and then everywhere September 30.

Find out more about the inspirational movie — sure to be a tearjerker — in the trailer.