Jennifer Hudson's son made an unscheduled cameo appearance in her new movie by sneaking into a shot without permission. The singer/actress recently revealed her little boy David, four, makes a brief appearance in her holiday movie musical Black Nativity, and now she has admitted he wasn't meant to be in the film at all. She tells New York Post gossip column Page Six, "He kind of snuck (sic) into the shot and ended up just sitting there, and the camera was rolling, and it's like now you can't move, now you're on the clock... He saw the movie and he's like, 'That's it? Where's the rest of my shots?'" Hudson also struggled to explain the concept of her onscreen son to David, adding, "(He) doesn't get the concept of me having another son in the film. He'll say, 'No, mommy, I'm your son. That's not your son.' He's only four so he's still trying to grasp all that."