There was a documentary done about one of the dot-com busts in 2000. I can't remember the title, but Google may be able to help you.
The problem is that most of work starting a startup is boring. So either a documentary distorts what actually goes on and shows you the interesting parts (like the one above), or you lose interest and forget about it.
My day basically goes:
1. Wake up. Start development VM. Check yCombinator. Reply to a post or two while VM boots up.
2. Implement a feature, or some administrative script, or setup some software package on server, while eating breakfast.
3. Go to day job. Work on somebody else's startup for 8 hours. Use breaks etc. to resource technologies I'll need for that night's programming.
3.b. Sketch out some feature longhand in a notebook on the train home.
4. Come home. Implement the low-hanging fruit that I just researched.
5. Eat dinner
6. Spend 2-3 hours working on some of the larger tasks that need doing.
7. Repeat.
It's pretty productive, but hardly good TV. The documentary would basically be "Jonathan staring at computer. Jonathan staring at computer. Jonathan staring at computer."
I am keeping a blog (poorly - been 2 weeks since I updated) with the day-to-day stuff. But really, that's just "Here's the challenge we just faced. Here's how we solved it. Rinse, lather, repeat."