Hahahha.

Druring the production of Troy...
Brad Pitt and Eric Bana both did their own fighting scenes. They also made an agreement that they would pay for every hit they accidentally made. The costs were $50 for a lighter blow and $100 for a hard blow. Pitt ended up paying $750 to Bana, who didn't have to pay Pitt anything.

What happened was Pitt just beat up Bana.