I'm not much of a movie person, but I agree with what was said earlier about it not being clear how everything works.

For example, I click on rankings and have no clue how the rankings are determined. I click on a movie and I'm not sure what the additional features of OnLify are, so I'm not compelled to sign-up.

For something like this, I think integrating Facebook/Twitter is a good way of sharing because people can share their recommendations for movies via their own personal networks. However, be careful not to spam people.

Making it clear what OnLify does and how it does it would help a lot. Hope this helps!