well, it is possible to stream sound clips, correct
so instead I could use the more plausible route and use wrench events to change the colors of a wall of 1x1s, but the event programming would take forever, and timing the proper color changes would be too tedious :{
*sigh*
I guess a working movie theater would only be possible for a hard-core Blockland devotee with a lot of free time on his/her hands.