Man do we have an interesting treat for you guys, Paramount Pictures has provided us with a scan of one of the authentic letters sent by the real Zodiac killer back on April 30, 1967. Is this something to brag about? Probably not, but it is extremely interesting if you ask me. David Fincher’s film, which hits theaters March 2, stars Jake Gyllenhaal, Mark Ruffalo, Robert Downey Jr., Anthony Edwards and Ezra Buzzington. The film is based on the true story of one of the most intriguing unsolved crimes in the nation’s history. Read on for the letter.