That Girl Montana is an extant 1921 American silent Western film starring Blanche Sweet and distributed by Pathé Exchange.

[1][2] As summarized in a film publication,[3] Montana Rivers (Sweet) finally escapes her father who had forced her to wear men's clothing and help in robbing and cheating.

Later, Akkomi (Edler), chief of the tribe, asks his friend Dan Overton to take the girl as it is not good for her to remain in the camp.

Jim Harris comes by and recognizes Tana as the boy robber, but when he attempts to blacken her past, Dan gives him a beating which paralyzes him.

When Tana's outlaw father appears, Jim, whose arms are still strong, strangles him.