1- in the movie, he thought something was eerie but no indication he knew it was satan
2- in the movie, he didn't sign the dotted line, he just touched the contract to take a look at it
3- from your perspective, the movie did do it better than the comic
4- I didn't realize that the lead character had to illicit sympothy in order for the story to be ranked more than rubbish and even if thats true, the way it went down definately gave the vibe that he was tricked not that he made a conscience, stupid decision(like most people do everyday)
5- peter fonda rocked ass as mephisto...just wanted to throw that in there