The Man in the Moonlight.

Two mysterious strangers arrive uninvited at the wedding of Sergeant O'Farrell of the Royal Mounted Police and Rosine Delorme, the daughter of an innkeeper. After O'Farrell receives a message that Rosine's wayward brother Louis has escaped from prison with the notorious devil-may-care outlaw Rossingnol, O'Farrell postpones the wedding to find the convicts.