I will have to disagree with you about Tom, yes there is confidence, and also cocky and then there is arrogant. I remember seeing a interview on 60 minutes a while back and he was just rude and arrogant and the questioning wasn't that bad and he is a control freak. I believe his personal character flows through into most of his roles and therefore he lacks the true actor qualities or he is type cast into certain roles to suit his personality. Look at Hugh Jackman, down to earth guy, confident but so versatile performing on broadway singing to wolverine on x-men - much better actor than Tom. But I won't let this sway me, and I get it out on dvd and see what I think.
You might watch IM3 at home later and love it especially if your son is enjoying, you never know, but no biggie everyone has different tastes and opinions.