I think these are more movie discussion sites, not watching them Snazzy.
And Graham is right IMDB is the best site for movie discussion and knowledge. It does go for TV also, but it isn't too accurate for television shows though. But if you want to go and learn about new upcoming movies or old movies you remember watching or want to learn about, IMDB is the place to go.
I like using imdb.com for reviews of movies occasionally. PS: Brett why did you start this thread... it is advertising, advertising is not allowed! (just to let you know)
Sorry... my computer hit submit for some weird reason...
Anyways, I hate websites you have to pay to sign up for. If I see you have to pay for them, I just leave and go to another site. It's so pointless paying, when you can get something for free somewhere else.