Sandra Bullock declined a cameo on the TV sitcom "The Big Bang Theory" due to the show's controversies. The producers wanted her to guest star as Raj Koothrappali's crush, but she politely declined because she was shooting a movie. Speculation arose that Bullock didn't want to involve herself in the show's controversies. "The Big Bang Theory" faced criticism for perpetuating stereotypes and offensive depictions of characters. It was accused of making fun of sensitive topics like mental health and autism. Despite the controversies, the show remained popular with a large fanbase.