Warrior

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Lionsgate and director Gavin O'Connor have set Nick Nolte, Tom Hardy, Joel Edgerton and Jennifer Morrison to star in "Warrior," a drama set in the world of mixed martial arts fighting.

Production begins in April in Pittsburgh.

Nolte plays an ex-Vietnam vet boxer-turned-steel mill worker whose family was torn apart by his alcoholism; the now-sober and remorseful dad welcomes back his youngest son (Hardy) and trains him to compete in a mixed martial arts tournament. He and his older brother, played by Edgerton, are on a collision course in the ring.

O'Connor wrote the script with Anthony Tambakis, and the helmer will produce with brother Greg O'Connor.

Hardy starred in "RocknRolla" and "Layer Cake," and Edgerton just starred in "The Waiting City" and "The Truth About Men." Morrison, who stars in the Fox series "House," will next be seen in the J.J. Abrams-directed "Star Trek."

O'Connor had originally set Nolte to play the patriarch in his last film, "Pride and Glory," but the actor bowed out because of a knee problem and Jon Voight stepped in. Nolte was last seen in "Tropic Thunder."