Breaking Bad is one of many modern TV shows that has a very brief opening title sequence, which doesn't communicate much except the tone of the show. Animator Martin Woutisseth clearly feels this was a missed opportunity, so he's created a superb animated opening title sequence of his own. (It would perhaps only work for season 2, because that was the only year all of these characters were involved with the show at the same time.) Anyway, it's a fantastic piece of work and I recommend you take a look. It doesn't even spoil the show, so hopefully it will inspire more people to start watching from the beginning.
Incidentally, if you're in the UK and frustrated the show isn't on television, the fourth season is available on DVD from 1 October.