I am hardly a director worthy of angst, but I definitely felt nervous as my 11 minute short began rolling.  My first thoughts listed as follows occurred in about 5 seconds:

“Wow, the music sounds surprisingly good”

“It looks pretty good, especially for being on a green wall”

“Ouch, the projector gets really hot really fast”

“How can the projector make an even image when its at a 20 degree angle on the soft bed?”

“They are really cheering.”

“Oh my, they love it!”