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Shane Gillis' 'Saturday Night Live' season-opening monologue drew sharp backlash from celebrities, including actress Martha Plimpton, who called the routine 'really fucking stupid' and said he 'deserves a spanking from his mom' in a video posted online. She joined a growing list of stars criticizing the poorly received segment. The controversy adds to ongoing scrutiny of Gillis' comedic choices on the long-running sketch show, which aired the monologue over the weekend.