The theatrical release was delayed for an entire year. Originally slated for September 2017 release, the film was moved to March 2018. On December 2017, the film was moved once again, this time to September 2018. The trailer was released on July 2017, more than an entire year before the actual film's release -- a rarity nowadays.
The trivia item below may give away important plot points.
Film cannot bear a "no animals were harmed in the making of this film" tag, as 4 bison were slaughtered for use on a skinning/hide-removal scene. The bison were dispatched humanely by staff from Longview Beef Jerky.