In a press release from Warner Bros. Entertainment, the Studio has announced that it will once again be offerring a set of limited-edition collectible hotel keycards at this years San Diego Comic-Con.

Smallville fans will be pleased to know that one of the all new keycards featured in the five card set (pictured below) is dedicated to the DVD release of "Smallville: The Complete Series" this October.

Other cards in the set will be used to promote the TV series "Alcatraz" and "Person of Interest," the digital series "Mortal Kombat: Legacy" and "The Lord of the Rings: War in the North" video game.

Nearly 40,000 branded room keys will be available to fans at 36 participating hotels throughout the San Diego area during the 'Con. This marks the fourth consecutive year for the popular room key program.