Picking up on the deleted scenes conversation, I just made a puzzling observation. I haven't read this entire thread as I only got to see the movie when it was released on Blu-ray, so I don't know if it has been mentioned already.
I watched the trailer on a PPV streaming service last night, and saw something odd. During the Nova Corps police lineup, John Reilly's character says
" they call themselves the Guardians of the Galaxy", then the 2nd cop says
" what a bunch of A-holes..." But that never happened in the movie, as 1) the four had only just met after causing a ruckus in the city, and 2), it was Ronon who mockingly called them that after beating them near the end.
So I'm assuming...they filmed that Reilly scene exclusively for the trailer?