 However, there are still were a few outstanding similarities.Everyone who completed the puzzles on the Ethan Haas website and gave their email addresses received a message on January 18, 2008 (the release date of Cloverfield).The subject line read "The Revelations of Ethan Haas Has Begun 1-18-08", putting emphasis on the date, which was written in the same format that was used for the promotion of the film.