Good!

Great special effects, made it feel real.

The good - Belivable characters, superb acting from A-list actors, amazing set and special effects, realistic actions. The bad: Grossly under developed characters - viewers do not learn anything about anyone in 107 min. Cartoonish BP executives/antagonist. No clear point was conveyed across - not sure where Peter Berg wanted to go with this movie: Social awareness? Oil is bad? Fallen heros?

Slow build up but you can't always change history