Hollywood star George Clooney has ruled out the possibility of him playing superhero Batman on the big screen again.

The actor had famously played Bruce Wayne aka The Batman in filmmaker Joel Schumacher's 1997 movie Batman & Robin, which performed abysmally at the box office and was universally panned by critics and fans.

Clooney recently appeared as the Caped Crusader in the final moments of Andy Muschietti's The Flash, the 2023 Warner Bros/DC film starring Ezra Miller.

Asked if he would take on the hero again, Clooney told ET last week: "I don't think there are enough drugs in the world for me to go back again."

Clooney joked that he made an appearance in The Flash because fans were asking for him to return as Batman.

"I thought there was such a clamour for me to come back as Batman as you know," Clooney said. "I actually said, 'Where are my rubber nipples?' And they were like, 'Can we do it without the rubber nipples?'"

Clooney continued: "I was like, 'Well, it's not really my Batman, is it?'"

Clooney's latest directorial effort The Boys in the Boat, starring Callum Turner and Joel Edgerton, is based on the 2013 book of the same name by Daniel James Brown. The film will be released in the US on December 25.