CinemaBlend Copy to clipboard Joseph Baena may be the youngest of Arnold Schwarzeneggerâs children, but he's possibly proving to be the most like him. Baena started following in his fatherâs footsteps by bodybuilding, sometimes even alongside Schwarzenegger at his gym. Now it appears the 23-year-old bodybuilder is following a lot closer to his fatherâs career path by now becoming an actor. You can see Schwarzeneggerâs mini-me (although a mini Arnold is still admittedly a pretty large force) getting into the acting game in the upcoming Bully High. We get a little behind-the-scenes look into the making of