Walk Hard: The Dewey Cox Story: 6 out of 10.
"Walk Hard: The Dewey Cox Story" isn't in the same league as "Knocked Up" or "Superbad," but it's a fun 90 minutes if you're just looking for a few laughs, some neat cameos and music that ain't half bad.
Look for Jack White as Elvis and Jack Black as Paul McCartney. As for the tunes, here's my favourite. It's double entendre-mania with John C. Reilly and Jenna Fischer performing "Let's Duet."