Has everyone ever noticed how compared to every other Star Wars film where there is usually a big action scene within the first five minutes of the movie, ROTJ is an anomaly? Not counting the laser blast which is heard but occurs off-screen when Bouschh enters Jabba's Palace, we don't get a laser blast until Luke uses the Force to grab the blaster and Jabba opens the trapdoor to send him down to the Rancor pit. This is the first major scene of action in the movie. Since I have to guess as I don't have a copy of the film handy, I would say this occurs at least a half hour into the movie. Seems like a really long setup, although I personally don't mind it. It's also interesting to note that the film starts from the perspective of the Empire instead of the Rebels.