Just looked at the 5-page preview here
http://www.comicscontinuum.com/stori.../idwfirsts.htm

and noticed an error with the 2 Decepticon cars. The purple one is Jold, the red one is Dead End, and yet the red one is calling the purple one 'Dead End'.
Maybe doesn't matter, if those 2 are 'contained' before the movie starts, and we won't even see them on screen.

Still not really happy about a movie that needs a hard to get comic, to follow it completely. The first Movie made more sense with the lead-in comic, so I fear that those who don't read Alliance (and maybe even Reign of Starscream) won't pick up on things in the second movie that are introduced in the comics.