Complex sentence: It had its world premiere at the Telluride Film Festival on 1 September 2017, and will also screen on 10 September 2017 at the Toronto International Film Festival, before being released on 22 November 2017 in the United States and 29 December 2017 in the United Kingdom.
Split into simpler sentences: It had its world premiere at the Telluride Film Festival on 1 September 2017. It will also premiere on 10 September 2017 at the 2017 Toronto International Film Festival, before being released on 22 November 2017 in the United States and 29 December 2017 in the United Kingdom.