Thor-
You can stream movies anytime...start, stop, then start again where you left off whenever...makes no difference, and with a good internet connection, takes only a matter of seconds.
I watch Netflix through my Wii on my bigscreen tv, and I love it. If I start watching something, and get distracted with the kids, chores, whatever, I can just turn it off, do what needs done, then start it again later when there's time.