All star movies or pop ?

[CastAStone]

I believe because I am going at a busy time, All Star Movies will perhaps have a dedicated bus, but no guarantee's. POP does and can use AoA bus as well. I believe that it is possible to walk to each All-Star as well from Movies and utilize their facilities too (including bus).

Movies has a dedicated bus every day in the morning and evening. It might share buses at lunch time and the couple hours after, or after an After Hours event. Depending on where your room is you might be closer to the Music bus stop anyway, and yes, you can take their buses.

You are officially allowed to use all the facilities at all the all stars if you stay at any of them. From the closest rooms, the walk from Movies to Music is a good bit shorter than the walk from Pop to AoA, if you can believe it, but of course it all depends where your room is.