According to reports, Colin Farrell has accidentally stabbed his co-star Gary Stretch while filming 'Alexander The Great'.
He punctured Stretch's protective padding, cutting him in the stomach, during filming for one of the climactic fight scenes.
Stretch, a former boxer, was taken to Wexham Park hospital in Slough for treatment, but has since returned to work.
Stretch said: "It was a very minor wound. It's one of those movies where these kinds of things happen. We've all had a few bangs and scratches."
The Oliver Stone film also stars Angelina Jolie, Anthony Hopkins and Val Kilmer and it is due out in November.