Visible crew/equipment: When Manny brings out an epee, equipment and a bald headed crew member are reflected on the polished guard's surface. It's pretty quick, but it's there. (00:09:45)
Continuity mistake: When Javier is setting up the pool table and Jay is about to break, we see in the next shot that the balls have slightly changed position, and in another shot before the end of the scene the balls have changed position again, without any play made between either of them. (00:09:00 - 00:10:00)
Answer: Mitch is upset that his dad doesn't seem to support his getting married. When they talk about Jay's friends not coming to the wedding, Jay makes it seem like Mitch wouldn't want them to come anyways. Mitch sees it as it's actually that Jay doesn't want to invite his friends to his gay son's wedding because he's embarrassed and uncomfortable about having a gay son. Essentially Mitch sees it as if he was marrying a woman, Jay would be willing so spend money on the wedding, host it at the club, and invite all his friends to it.
Bishop73