Diego Luna, Luis Guzman, Adriana Barraza, and Benito Martinez star, with Annie McCarthy handling casting and more actors to be announced soon.
Deals have been done for Germany & Austria (Telepool), Latin America (Sun), the West Indies (Caribbean Film Services), Croatia, Serbia & Slovenia (Continental), the Middle East (Gulf Film), Portugal (Lusomundo), Romania (Media Pro), Poland (Monolith), Benelux (RCV), and Greece (Spentzos).
Laurence Malkin directs the story of a military intelligence operative, an FBI agent and a crime lord whose lives collide because of a heroin deal in Albuquerque.
Paul Schiff, Tai Duncan and Rosanne Korenberg produce.
The shoot starts in April in New Mexico.
Jamie Carmichael, president of ContentFilm International said: 'We've been looking for a really smart action film for ages and Horse delivers both the opportunity for award winning performances alongside full on, commercial action.'
Schiff added: 'I think Horse is a great combination of textured, mature character writing and high intensity action. It's a very potent, exciting piece of work. We couldn't be happier about how the project has come together.'