According to an article in the telegraph there's also comments from DC, MB, & Joe Marler about the saracens affair in the documentary...
I am sure that it is not just a few senior Quins lads who question if the sanction imposed on Saracens is harsh enough. I have not been scouting the press for other comments from players at other clubs but it does seem that the rivalry between the Quins and Saracens clubs is being used in addition to add spice the the story.