... as I want to see peoples answers for a point;

You're at home and watching tv and you start watching a film that you've either stumbled across by complete accident, or that someone's recommended, or that you just thought sounded good.

You're 20 minutes into it, and it's absolute rubbish.
It's the worst film you've ever ever ever seen in your life.
Do you watch the next 2 hours and 10 minutes?