Meet George Lucas, office supply salesman. If he had listened to his father and gone into the family business, that's what the creator of Star Wars and Indiana Jones might be doing. "He wanted me to go into his business. I said, 'I'm absolutely not going to do it,' " Lucas recalls. "He sold office equipment in a store. I said, 'I will never go to work every day doing the same thing day in and day out.'" It sort of gives a new perspective to all Darth Vader's talk of, "Join me and together we can rule the galaxy!" Lucas says the tension between fathers and their children is a deep part of both of his most famous projects, and it turns up again in Indiana Jones and the Kingdom of the Crystal Skull, opening in many cities tonight and Thursday worldwide. The last time around, Jones was treasure-hunting with his aloof professor father in The Last Crusade, and the battling father-son dynamic is even more obvious in every Star Wars movie after The Empire Strikes Back.