Ricky Gervais is considering bringing comedy show EXTRAS back for a special episode starring Mel Gibson. The British comedian vowed the second series of the show - on which a number of A-list stars mock their own fame - would be the last, but Gervais is thinking about a special one-off episode. He says, "I might do a special or something. It takes a long time. I've had a few ideas for people. "I think I could do something great with Mel Gibson."