Jonathan Mostow’s European-set action film “The Hunter’s Prayer,” starring Sam Worthington, has been heard by buyers in more than 20 territories.

The picture started shooting in Yorkshire, England, and Hungary this week with Worthington (“Avatar”) and Odeya Rush (“The Odd Life of Timothy Green”) in the lead roles, respectively, as an assassin and his intended target. But the assassin finds he can’t carry out the kill. The two then find out they are both being targeted for death and are hunted down across Europe. Other recent cast additions include Martin Compston, Amy Landecker and Veronica Echegui.

Handled by Sierra/Affinity, the picture has been sold to distributors in Asia (Star), Bulgaria (Tandem), the former Yugoslavia (Blitz), Germany (Square One), Greece/India/Middle East/Turkey (Italia), Hong Kong and Taiwan (Sound Space), Iceland (Myndform), Israel (United King), Indonesia (PT Prima), Latin America (Sun Distribution), Malaysia and Vietnam (Roarlion), South Africa (Ster Kinekor), South Korea (Focus and Co.), Switzerland (Ascot Elite) and Thailand (Mongkol).

The film is based on novel “For the Dogs” by Kevin Wignall and adapted by Paul Leyden, Oren Moverman & John Brancato and Michael Ferris.

Pic was produced by Vandal Entertainment’s Navid McIlhargey (“RocknRolla”), Anthony Rhulen (“Rum Diary”) for Film Engine (U.S.), Chris Milburn (“An American Haunting”) for Midsummer Films (U.K.), John and Michael Schwarz, Sam Worthington for Full Clip (U.S.) and Paul Leyden.

Finance is by Screen Yorkshire and Ingenious Senior Film Fund. LipSync Prods. is an executive producer.