The first film I saw where the audience stood up, cheered and applauded through the entire end credits was Star Wars in 1977.

Closest I've seen to an audience booing is when I went to see Star Wars Episode One: The Phantom Menace. The audience cheered when they saw the opening title, "A long time ago, in a galaxy far, far away..."

After the movie ended and the audience was bombarded with the poor acting of "Mannequin" Skywalker, the unfunny Jar-Jar Binks, the incredibly dull pod race, the mediocre CGI effects, the incredibly bad Yoda puppet, and the forgettable story, the audience left their seats being very quiet. I sighed and said out loud, "Well, that was 2 and 1/2 hours of my life I'll never get back." One of the audience members answered, "Yeah, well, lets hope Episode 2 will be better." I'm not quite sure it was.