I work in IT, so I can post during the day while waiting for processes to finish (and lots of time I get to sit around for hours, "just in case" something breaks... Yay....). So working 50-70 hours a week isn't uncommon, but there's downtime.
As for movies, I don't see how anyone doesn't ever have 1.5 hours of uninterrupted time to watch a movie... I'd venture to guess that, while you aren't the only one in the world who watches movies that way, you're definitely in the minority. I'm just trying to figure out how someone can be so "busy" that they don't even have 90 minutes in a row do something they like.... I'm not attacking you, I just don't understand it.