Peter Jackson has officially come aboard a project Sir. Paul McCartney had previously hinted at: a Let It Be documentary.

The Lord of the Rings filmmaker just finished the WWI documentary They Shall Not Grow Old and will reportedly use some of the same techniques for this. Jackson's technical skills alone will undoubtedly add a whole new dimension to the documentary which will be re-purposing 55 hours of unused footage shot in 1969 on 16mm film by original director Michael Lindsay-Hogg.

"The 55 hours of never-before-seen footage and 140 hours of audio made available to us ensure this movie will be the ultimate ';fly on the wall' experience that Beatles fans have long dreamt about," Jackson said.

The footage is "an amazing historical treasure trove," Jackson went on. "Sure, there's moments of drama, but none of the discord this project has long been associated with. Watching John, Paul, George and Ringo work together, creating now-classic songs from scratch, is not only fascinating. It's funny, uplifting and surprisingly intimate. … I'm thrilled and honored to have been entrusted with this remarkable footage. Making the movie will be a sheer joy." 

Stay tuned for more on this as we hear about it. Enjoy a original Let It Be trailer and the trailer for They Shall Not Grow Old below.