While most of the time the actor who ends up playing the lead role in a movie turned up to the audition actually looking for the part, sometimes actors are discovered entirely by accident. This has long been claimed of Harrison Ford, who was alleged to have been "discovered" for the role of Han Solo while doing some carpentry work at the house of George Lucas. Mel Gibson never planned on playing Mad Max, until the day he went along to an audition with a friend and caught the attention of the casting agents. It wasn't his good looks which caught their eye - in fact, the previous night Gibson had been in a bar fight and his face was swollen and covered in cuts and bruises. Since they were looking for "freaks" they asked him to come back in a couple of weeks. When he returned the casting agents couldn't recognise him without the bruises but asked him to read for the part of Max and the rest, as they say, is history. What other facts about the Mad Max trilogy do you know? Why not share them with us in the comments below?