Skid Row Superhero

The summer of super hero movies continued for me as I went to see Hancock last night. The movie stars Will Smith, Charlize Theron, and Jason Bateman. And, as with a majority of superhero movies, this one showed so much promise, but, in the end, seemed like a half-baked effort.
I thought the premise of the movie at the start was excellent: a superhero who tosses down bottles of Jim Beam like water and sleeps at bus stop benches. And even though most superheroes save the day with unbridled enthusiasm, Hancock has a "whatever" attitude and stops the bad guys in a not so graceful fashion, causing damage to the city to the tune of $7 million.
Another piece of the plot that I like is a public relations guy (Jason Bateman) tries to help Hancock to clean up his image, even to the point where he teaches Hancock to don a phony smile and say "Thank You" and "Good Job" to the cops of the city. Funny, amusing stuff.
Where the film disappoints is in its indecisive approach in describing Hancock's origin, and this is where the dialog between Hancock and the PR guy's wife comes in. Where did Hancock get his powers? How did he end up on skid row? What's with the I-don't-give-a-darn attitude at the start? To this very minute, I feel I needed those questions answered for this movie to be awesome instead of pedestrian.
So, go see Hancock for the action and the acting by Will Smith. It's not on the same level as SpiderMan, The Incredible Hulk, or even Iron Man.