Tough guy actor Chris Penn had to shoot one scene in Reservoir Dogs with blood gushing from his neck after co-star Michael Madsen's rottweiler attacked him.

Madsen recalls his dog, Blue, biting Penn just before a pivotal scene and the actor was so determined not to halt proceedings on the set, he ignored suggestions to go to the hospital and insisted director Quentin Tarantino call action.

Madsen says, "Chris stepped up into the trailer and Blue bit him on the face... All this blood was flowing down his neck.

"But he refused to go to the hospital, so they packed it (wound) up with make-up. Quentin was just like, 'If you don't want to go to the hospital, then don't. Let's shoot.'"