I've said it several times, and I'll say it again: Shaw Tower
Beach Road.
That's where the Prince/Jade cinemas are. Most of the time you can
buy the tickets on the spot and still get good seats there, even on
weekends.
Which was why I was frankly surprised as to why you would want PS.
It's more comfortable there, but if you want to watch movies there
on a weekend, then you had better book tickets early.