the express line entrances are generally in the same area. The lines do separate right after you enter, and the express lines usaully take you to some sort of back /side ride entrance, You miss out on most of the queue line, and attendants are located and check for your valid room key before you can board the rides, so line jumpers cant use the express pass lines. I remember on the hulk coaster, the line mostly was outside, then you go up some back stairs entrance, and board the rear of the trains.