If memory serves me correctly regarding the convention space of that hotel, right off the top floor just a little down the hall next to the elevators (step off the elevators, and to your left) is a big event room, (not talking about the mega round dance floor. Its pretty large and I think you can close the curtains for darkness (not sure on that one) that place would be perfect for use as a movie theater space for said projector and equipment. It would keep media events and equipment (such as sound systems and lighting in a central place as I'd presume you'd hold the dance and larger draw (Guest of Honor) presentations in the main dance floor (Big circular room) (I know this hotel pretty well

) I'd presume the staff would use the Cascade Ballroom, all three sections for use as the dealers area, and the two smaller rooms as event space, further I'd presume that the con would utilize the Boardroom as ConOps (its what I'd do as its centrally located and relatively easy to find.