Dwayne Johnson may have retired his wrestling name, The Rock, but he's still doing battle in the movies. He brought his upcoming family adventure, Race to Witch Mountain, to San Diego Comic Con to put it up against all the other big studio movies showing early footage to fans. This follow-up to the Disney series started with 1975's Escape to Witch Mountain casts Johnson as a Las Vegas cab driver protecting two alien teens from bad guys who would force them to use their special powers for evil.