I think I will put some links for users to help them start building their movie lists (Movies watched, Movies you want to watch, and movies which in your opinion are trash).

I guess one way would be to show user say IMDB 250 list or any other such All Time list.

Plus the thing you said about getting viral. I will need to come up with a way to do that. Sharing list is definitely one of them. I also integrated FB Like for all movies which may help in spreading the word.