EXCLUSIVE: Hell On Wheels star Anson Mount has joined the cast of Mr. Right, the hitman action romance starring Anna Kendrick as girl unlucky in love and Sam Rockwell as the assassin she accidentally falls for. Filming begins next week in New Orleans under helmer Paco Cabezas (Neon Flesh), who’s directing from a script by Chronicle‘s Max Landis.

Mount will play Richard Cartigan, a member of a New Jersey crime syndicate who’s jockeying to become head of the family. Also joining Mount alongside Rockwell, Kendrick, Tim Roth, RZA,and James Ransone in the cast are Michael Eklund (Bates Motel, The Call) as the tattooed thug Johnny Howl, and Katie Nehra (Alex Of Venice), who’ll play the bookish roommate to Kendrick’s Martha.

The Amasia Entertainment and Circle of Confusion film is produced by Michael Helfant, Bradley Gallo, Lawrence Mattis, and Rick Jacobs. Stephen Emery and Landis are exec producers. Mount, who also appears opposite John Travolta in the TIFF title The Forger, is repped by CAA and Brookside Artist Management. Eklund is repped by Greene & Associates and Red Management. Nehra is repped by ICM Partners and Impression Entertainment.