Gunman director Pierre Morel says the film's star, Sean Penn "doesn't compromise" when it comes to acting.
Pierre, who also directed Taken, marvelled at the experience of working with Oscar-winning star along with Javier Bardem and Idris Elba, months after the shooting of Gunman finished, reports variety.com.
At Thursday night's premiere of Gunman, held at Live's Regal Cinemas in Los Angeles, Pierre discussed the experience of directing the three actors.
"You don't have to do much. The magic just happens. You feel useless sometimes," Pierre said.
Speaking of Sean Penn, he added: "He just gives you the best he can, whether it's action or drama. He doesn't compromise."
In the film, Sean plays an ex-assassin on the run, with Elba appearing as an Interpol agent and Javier Bardem playing Sean Penn's girlfriend-stealing ex-colleague. The murky allegiances among the three provide much of the film's tension.
Gunman is set to release on March 20.
