I saw this last night and enjoyed it, but am surprised that one very obvious, and similar, movie has not been mentioned here yet: Unbreakable (which I liked quite a bit more).
In both, you have characters who are fundamentally dissatisfied with their lives, and the only way for them to find real peace is to come to terms with themselves and their purpose, which is rooted in their special powers. And the one to guide them to this path of enlightenment is someone who ends up representing a partner but also an “opposite”.
Like Unbreakable, this movie doesn’t go in-depth with backstory and origin details, and I think it’s to this film’s benefit. It’s certainly the first big blockbuster action movie this year that didn’t feel like it was longer than it needed to be (even Iron Man felt long after a while, IMHO). Like the Shyamalan film, Hancock only has one major Hero moment (the opening is mostly a goof, and the climax barely counts as an action sequence), but the point isn’t the action but the character’s realization that he can fulfill a Destiny that seems laid out for him. We’re seeing the initial baby steps of a Transformed Man, and I think (like with the Bruce Willis film), a sequel would be unnecessary or redundant.
Some other things nobody’s mentioned: To me, it seems like Mary was actively running away from Hancock (she speaks of constantly being “followed”). She would see him injured and leave him, only to be pursued (perhaps obsessively) and found, only for the cycle of violence and vulnerability to happen again. The amnesia ends up being critical to his change because he’s someone who otherwise can’t let go of the past. I also like how Mary had a trigger word, too (“crazy”), and how Hancock is like Frankenstein–good-hearted at his core, but feared and reviled because even he doesn’t know his own strength sometimes (and has grown not to care). All the mob around the train accident was missing were pitchforks.
As far as Hollywood (non-animated) tent pole movies that have come out this summer go, it is probably my favorite because it both exceeded and undermined my expectations in a way that was unpredictable, provocative, and worth re-examining. Peter Berg (who also directed the underrated and slyly subversive The Kingdom last year*) is turning into someone really worth watching.
*I’m more inclined to go agree with Dio’s foreign policy allegory because this film had many of the same themes.