A woman posing as Fight Club actress Helena Bonham Carter had to be "forcefully ejected" from the set of Saturday Night Live over the weekend after she managed to make it past security, MSNBC reports. "She didn't look exactly like her, but stars don't always look like themselves in life," a source said. "But she was acting kind of weird and hanging backstage and making a nuisance of herself." The impersonator made several references to "Kenneth," as in actor Kenneth Branagh, Bonham's ex. "Nobody wanted to accuse her of lying about who she was because if they were wrong, it would be really embarrassing," the source added. "Finally, when she wasn't around, a producer went through her purse and found out she was an imposter." (Don't let Survivor's Mad Dog find out about that.)