Link to contest: https://registration.warnerbros.com/gx4ma/MainPage.html
Link to rules: https://registration.warnerbros.com/gx4ma/OfficialRules.html
Ends 12:00:01am PT on July 31, 2012
"One (1) Entry per calendar day, per email address or household is allowed during the Sweepstakes Period."...