United Kingdom, Nov. 17 -- George Clooney has joked his twins will need "therapy" because of his Batman costume.

The 64-year-old actor played the Caped Crusader in 1997 film flop Batman + Robin, in which his Dark Knight costume featured rubber nipples.

George has admitted the movie was a "disaster", and quipped his eight-year-old twins Alexander and Ella may need to see seek psychological help later in life because of his outfit.

He told The Sun newspaper: "We know they're going to be in therapy no matter what, just from Batman + Robin. 'My dad had rubber f***ing nipples'. Disaster."

But the Hollywood star has been "more interested" in directing than acting in the past 10 years, because some of the parts he has been offered "weren't a...