If you've never watched Hell on Wheels, you need to, if you don't own it, go buy it. There are very few cycling movies and documentaries that capture the sport like this one does. I break it out when I need motivation, to know I can work harder and can suffer a little bit more. Maybe it's just the harsh German language.
Don't try to watch while doing intervals on the rollers, it's in German and French so all sub-titles.