Two acclaimed rockers were left out of the nominations for the 2008 Academy Awards, which were announced today, largely on a technicality that left them ineligible.

Jonny Greenwood

Pearl Jam frontman Eddie Vedder's lauded soundtrack for the film Into the Wild didn't make the cut, as it was ruled ineligible because of "predominant use of songs." Vedder was eligible for best original song for the film but was not nominated.

And in a last-minute decision by the music branch of the Academy of Motion Picture Arts and Sciences, Radiohead guitarist Jonny Greenwood's score for There Will Be Blood was ruled ineligible because it is "diluted by the use of tracked themes or other pre-existing music."

Greenwood's score contains roughly 35 minutes of original recordings and roughly 46 minutes of pre-existing work, including those of such composers as Johannes Brahms.

Glen Hansard and Once costar Marketa Irglova.

But while the big names were shut out, Glen Hansard, frontman for Irish rock band The Frames, was nominated for best original song for "Falling Slowly" from the film Once. Hansard stars in the film as a busker and has drawn rave reviews for his performance.

Three songs for the film Enchanted grabbed original song nominations. The final song nominee went to "Raise It Up" by Jamia Simone Nash and Impact Repertory Theatre in the film August Rush.

In one other music note, Cate Blanchett garnered a nomination in the Best Supporting Actress category for her role of Bob Dylan alter ego Jude Quinn in Todd Haynes' I'm Not There.

The Academy Awards will be presented February 24 at Los Angeles' Kodak Theatre. Click here for a full list of nominees.