I wasn't sure whether I should create the thread here or in Trailer News but I figured this might be a good idea for a thread for anybody interested. We can post image comparisons of various trailer encodes here.

The encodes in question are Apple, Moviefone and Yahoo. Now it's probably not even necessary to state this but just in case: The Apple and Yahoo screen captures have recognisable watermarks and the screen captures without watermarks are from the Moviefone encode.

The images have not been enhanced in any way and I did my best to make sure that the images being compared are of the same frame in the corresponding trailers.

I'll start the thread with comparisons of X-Men: First Class (Trailer 2):