It’s probably an effect applied somewhere in a precomp. Templates are notoriously complicated; you’re going to have to dig through the compositions in the project to find it. The easiest path is probably to go to the composition where you drop your footage, press the TAB key to pull up the mini flowchart, and then go to the comp that your footage comp is nested in. If the letterboxing isn’t done there, repeat! You’ll find it eventually.
– The Great Szalam
(The \’Great\’ stands for \’Not So Great, in fact, Extremely Humble\’)
No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.