I've done a similar thing. Back when DVDs first came out, I got the goodfellas dvd, and not knowing it had the video on both sides of the disc, I just inserted it without thinking. The movie for me started with Lorraine Bracco banging on Ray Liotta's door, upset about some girl he had been sleeping with or something. And then the movie was only about an hour long, too. I wasn't sure what was up, but I didn't see what the hype was about the movie