The 42nd annual Toronto International Film Festival was held from September 7 to 17, 2017. There were fourteen programs, with the Vanguard and City to City programs both being retired from previous years, with the total number of films down by 20% from the 2016 edition. Borg/McEnroe directed by Janus Metz Pedersen opened the festival.

The Toronto International Film Festival is one of the most prestigious and largest publicly attended film festivals in the world, founded in 1976 and taking place each September. It is also a permanent destination for film culture operating out of the TIFF Lightbox cultural centre, located in Downtown Toronto.