I was not quite 6 when Star Wars was in the theaters. My summer included a trip to San Francisco with my father an grandmother to visit an uncle who was living there. We went to the theater to see the movie one night. I found Star Wars to be incredibly boring and spent most of the night in the lobby trying to find ways to entertain myself.
1) 5 year olds have a different perspective on things.
2) I miss the 70s, when it was perfectly OK to let your toddler wander off by himself while watching a movie.