Here's a word of advice for aspiring young actors - just because there are a lot of zeroes in a contract you're being offered, it doesn't mean you should sign it before thinking very carefully. If you're in any doubt about that, just listen to Channing Tatum talk about the terrible time he had making 'G.I. Joe - Rise of The Cobra.' He's made no attempt to be subtle about his distaste for the film -he repeatedly told Howard Stern 'I hate that movie,' and threw some expletives in just to underline the depth of his feeling.
As with Jennifer Garner in 'Elektra,' Tatum never wanted to be involved in the film. He'd signed a three-movie contract when he won a part of 'Coach Carter,' and signed it because he thought, as a young actor, he was getting a great deal. What he didn't realize that he didn't have any control over what those movies would be, leading to him being committed to a part that he couldn't stand.