I know sites have gone through issues of barrier to entry on websites, but this is ridiculous. The site for I Know Who Killed Me requires not only your zip code, first and last name, and birthdate to enter a site. The "site" you're entring is a movie trailer of sorts in the form of a lame fake video blog (I'm soooo glad this sort of viral marketing has caught on....). Seriously, there is no good reason for this. The site requires a valid zip code (no postal codes allowed!) and you have to be 18 to "sign up" (even though you don't submit an email address anywhere).
Course, I suppose if you're interested in a Lindsay Lohan movie you probably deserve it. The only reason I was at it was for research purposes as apparently she gets naked on film.
On movie film that is. On purpose. And not doing coke.