I read your question in the Hollywood forum, humm, I think that for this proyect is a bad choice to use layers, it is good if your program not depends of external graphics that they can a weight of 1 MB or more, the layers with this pictures or pictures with big sizes, will cause the program to slow down or crashed, you can see this with my demo The Widow e-Card 2 with the final vampire girl, how this is showed very slow, with little graphics is perfect the use the layers for visual effects, like HideLayerFX, etc.