There is no content from RS2014 that has been delisted, including the pack you mention. It's only available as a pack so that may be why you are confused.
https://www.theriffrepeater.com/rocksmith-2014-dlc-312016-rocksmith-goes-to-the-movies/?_ga=2.236830152.815187620.1674766248-826600252.1486593637
https://drive.google.com/file/d/0B1ZKYtpB0vu2WnJWZzdtUkp6SU0/view download and run patch if it doesn't work verify the integrity and run the patch again https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335 if that doesn't work re-install Rocksmith 2014 Remastered (back up your custom songs) and run the patch again