I found this amazing fanmade video for Back to December that cuts out the male actor and inserts Taylor Lautner. It honestly could be the official video, it's so good. If 你 feel that Taylor wasn't done justice 由 that actor, check it out!

Skip to 0:38 (creator has a production sign)

made 由 me. :)

mentions Taylor Lautner

Note: The creator of the video had to alter the pitch of the voice for copyright reasons.