In December 2014, it was announced that
Kit Harington and
Jessica Chastain would star in the film, with
Xavier Dolan directing the film from a screenplay he wrote with
Jacob Tierney. Harington would portray the titular character while Chastain would portray a journalist. That same month, it was announced
Susan Sarandon and
Kathy Bates had joined the cast of the film. Sarandon would portray the role of Donovan's mother, while Bates would portray the role of his manager. In November 2015, it was announced that
Adele was in talks to appear in a cameo role. That same month,
Michael Gambon,
Bella Thorne,
Chris Zylka,
Emily Hampshire, and
Jared Keeso joined the cast of the film. In February 2016,
Natalie Portman,
Nicholas Hoult and
Thandiwe Newton joined the cast. In July 2016, it was announced
Ben Schnetzer joined the cast of the film, replacing Hoult. In February 2017, it was announced
Jacob Tremblay had been cast in the film. In June 2017,
Amara Karan joined the cast of the film.
Gabriel Yared composed the film's score, which was recorded in July 2017.
Filming Principal photography began on July 9, 2016, in
Montreal. The first block of principal photography concluded on September 3, 2016. In February 2017, production resumed in Montreal, before being completed in the spring of 2017 in
London and
Prague.
Post-production In February 2018, Dolan confirmed via
Instagram that during post-production, Chastain's character had been cut from the film for timing and pacing reasons. In an interview in October 2018,
Bella Thorne mentioned she had filmed some scenes, but they were with Chastain's character and thus were cut from the film. ==Release==