Walk Hard, a mock biopic spoofing the likes of Walk The Line and Ray, has John C. Reilly playing Dewey Cox, a fictional musician with shades of Roy Orbison and Johnny Cash. Over the course of Cox's life, he crosses a lot of real-life music legends, and now we know who will be playing the role of the King. Jack White, singer/guitarist for both The White Stripes and The Raconteurs, will be stepping into the Blue Suede Shoes of Elvis Presley. What an awesome bit of news -- one of my favorite modern musicians playing one of my favorite musicians from the past! Will Ferrell and Jack Black (Jack Black and Jack White!) are also rumored to be doing bit parts. No word on who they'll be playing, but here's hoping for an appearance by Ferrell's Neil Diamond. "I wrote this song on the back of a Dixie cup!"

You probably know Jack White from his music, (White Blood Cells is a great place to start if you don't), but he has acted before, including bit parts in both Cold Mountain and Jim Jarmusch's Coffee and Cigarettes. Walk Hard also stars The Office's secretary Jenna Fischer (somewhat disappointing in Blades of Glory), David Koechner ("Whammy!"), and Saturday Night Live's razor-sharp character actress Kristen Wiig. The script was written by Judd Apatow and Jake Kasdan, with Kasdan directing. The pair have worked together before, most notably on two wonderful and sadly departed television programs, Freaks and Geeks and Undeclared. Kasdan's got a little film you should keep an eye out for in the coming months called The TV Set, a very interesting and funny look at the television business. Walk Hard is scheduled to rock and roll into theaters early next year, and as a fan of everyone involved, I can't wait.