Plot hole: When the students are breaking into ETS, they take great care to avoid the security cameras in the lobby; donning masks, crawling on the ground, etc. Yet a bit later, two of them go back to guard the same lobby, they are seen walking around and sitting on the desk that they so carefully crawled past earlier.
Continuity mistake: Right between Kyle's speech and introduction of the plan at Larry's, Roy switches from holding his arms at his sides in a shot on Desmond to crossing them in the wide shot. (00:40:05)
Francesca: You look like a slut. I like it.