George Clooney as Batman (Batman and Robin)
Even George Clooney realized that replacing Val Kilmer as Bruce Wayne was a catastrophic error in 1997. Clooney remarked in a hilarious interview on the Graham Norton Show, “I constantly apologize for Batman & Robin.”. He also said, “I actually thought I destroyed the franchise until somebody else brought it back years later and changed it. I thought at the time, ‘This is going to be a very good career move.’ It wasn’t.”
Guy Pearce as Peter Weyland (Prometheus)
Guy Pearce has spent his time on a screen in pounds of unconvincing old man make-up in Ridley Scott’s 2012 movie Prometheus. The prothesis was so distractive that even Pearce said that he was thinking, “Why didn’t [Scott] just cast Ian McKellen?”