This movie is not a sequel to Ang Lee's. But the "origin story", which they radically changed for those familiar with the comics, is distilled down to about 5 minutes and we get on with the story of the movie... Bruce Banner on the run while trying to find a cure.
Also, they give the Hulk a villain from his actual comic to fight, the Abomination,in a good old fashioned Hulk smash knockdown brawl. None of that trippy Nick-Nolte-elemental Ang Lee blah blah blah. Hulk smash.
Its directness is both a strength and a weakness. There were no surprises (especially thanks to the internet). It was all very predictable. Fortunately the acting was solid, the action was good, and the story was decent.
And Hulk smash.
My rating: 3.5 of 5 gamma-irradiated green flying monkeys