There's a lot of hinting at her backstory, and a lot of conflicting information, but I don't think it has ever really been fully fleshed out though. Definitely a lot of potential for something awesome.
Also that movie had a ton of execution issues which had nothing to do with him. The reasons that movie were awful is a pretty endless list.
About that outfit from the NBC pilot... wth is that crap?? Were they trying to show less skin to make her appeal to women more or something? That's just awful >< Also Wonder Woman should definitely have a good amount of muscle definition, but she shouldn't look like a female bodybuilder. I always think of her as being very toned.