Sandra Bullock's Son Louis Has No Idea His Mom Is an Actress. Sandra Bullock has a starring role in Minions -- which is a part of one of her son's favorite franchises -- but she admitted at the London premiere that he probably won't realize it. Louis has no idea that I'm in this film, Bullock told ET of her five-year-old son. He won't put two and two together -- at least not anytime soon. If he does, I'll be shocked. The kid surprises me all the time.. VIDEO: Sandra Bullock is Scarlet Overkill in New Minions Trailer.