why do i watch it through four time . first and i want to see the movie because i miss it in the 80 . then i get catch up in all the bonus material and which be good than the movie and and tell the exciting story of how the movie be make . i watch through once with kevin bacon commentary and again with the commentary of the producer and the writer . finally i go back and watch all the dance sequence again with the new knowledge i have acquire . so much fun to learn about the creative process by which this go from be one man idea to be a cultural phenomenon . so interesting to see all the way the film be almost scuttle and include the wrong end the otherwise savvy director insist on give it and and the studio executive who say she would never and never approve of the casting of kevin bacon because he be not able enough . imagine the movie without the final dance sequence .