Christopher Walken and Sam Rockwell accidentally kidnap Woody Harrelson's beloved dog in the upcoming black comedy Seven Psychopaths. Caught up in the chaos is Colin Farrell, who plays a struggling writer who dreams of finishing his screenplay, but needs a little focus and inspiration.

Psychopaths was written, co-produced and directed by Martin McDonagh. One thing to note is that Mickey Rourke was originally cast in the Harrelson role, but due to disagreements with McDonagh, eventually dropped out.

The film reunites Farrell with his In Bruges director. The Oscar-nominated film helped relaunch Farrell's career which had stumbled a bit in a series of box office duds. Since then, the actor has steadily worked himself back up to leading-man status, most recently in Total Recall.

Seven Psychopaths co-stars Abbie Cornish, Olga Kurylenko, Tom Waits and Gabourey Sidibe and arrives in theaters October 12. But for it opens for the masses, the film will make its World Premiere at the Toronto Film Festival as part of their Midnight Madness line-up.

Watch the shi tzu hit the fan in the new trailer and let us know what you think.

Follow along on Twitter @DerrickDeane and @Fandango.