What about the movie was actually better than the comics, and what was worse?
Better: To me, the most obvious is Mjolnir. I don't think the design could've been any better.
Also, I think not having the Donald Blake identity was a good call.
Worst: Even though I understand why the costume had to be the way it was, and it did grow on me somewhat, it just wasn't Thor enough.
I don't think the actors playing Volstagg and Heimdall were the best choices.