Hi Stealle,
A nice thing to do for a "movie scene" is to use a synchrolinc on the TV which detects if it is turned on or off.
As an example, when the TV is turned on in the everning, I use it to turn off the front lights and Dim the back lights to 18%, just enough to see the remote. When I turn off the TV, all lights in the room get to 50%. I also have a remotelinc to override this if need be.
Now, a scene or a program? Depends. If the you only want your lights to follow the TV On & Off, scenes is the way to go. However, if you want to add any conditions, you need programs. An obvious one... you probably don't want the lights to turn on during day time. Therefore, you need programs.
Let us know what you would like to achieve more specifically, and we can help.
Benoit.