It's all a legal grey area. I mean we don't say "come watch _______ this Friday". That being said we have watched movies on the big screens before. At all nighters usually someone brings something to watch, I always have movies up front for me to watch as well. We aren't making any type of profit or charging to watch the movie.
When we went to gamestop for the midnight release of Skyrim someone had a projector and Hangover 2 on the side of the strip mall where gamestop is located. I'm sure it's not legal but not like the film industry is cracking down on that yet.
However any illegal downloads or streams that they pull from the internet is a no no our ISP sent us a warning letter after someone file shared an episode of "HOUSE" from our store. It was someone that brought their own laptop we now have paper work and other firewall settings in place to not allow that type of thing to happen again. You tube, hulu, crackle, "legal" video sites are ok I watch them on a regular basis.
As far as music goes we stream different radio stations. Some local that we advertise on and KROQ out of LA because they play some of the newer music that is usually 6 months ahead of what we have on the local stations.