Murder at Yellowstone City (formerly titled Murder at Emigrant Gulch) is an American Western film directed by Richard Gray from a screenplay by Eric Belgau.

[1] In a gold-rush boomtown that has gone bust, a prospector strikes gold and is murdered.

Sheriff Jim Ambrose (Gabriel Byrne) assumes that the killer is a newcomer, a former slave who calls himself Cicero (Isaiah Mustafa), because "he's the only man who doesn't know what [Ambrose will] do to him."

But as it becomes clear that Cicero is innocent and as the mystery of the prospector's death deepens and puts the whole town in jeopardy, the town's new minister, Thaddeus Murphy (Thomas Jane), and his straight-shooting wife, Alice (Anna Camp), must stand up to Sheriff Ambrose and bring the true culprit to justice.

[2][3] At the Cannes Film Market in June 2021, additional casting was revealed, and it was announced that production had wrapped.