They didn't affect the outcome of the game and I'm not trying to start a horrible officiating thread here, just some curiosities.
Swain Drop: Everyone seemed to agree this wasn't a catch, but what about it wasn't a catch? I used to think 2 feet and a football move = catch, and my take through my green 'n gold glasses saw him twist 180 degrees, get two feet down and move up field before the ball was jostled loose.
Collins' Celebration: This wasn't explained much, but it looked like flags were thrown just as he got to his knees in the back of the endzone. I don't even know what the letter of the law is, but I can assure you that my TD celebration at my apt. was 100 times more exuberant than his! He just pick 6'd and put the Packers up 14 in the Super Bowl, give him some leeway.