Warner Bros. TV Reveals Comic-Con Keycard Art

If your cosplay or comic book t-shirt doesn't say that you're in town for San Diego Comic-Con International, then your hotel keycard certainly will.

Warner Bros. Entertainment is releasing specially-themed Comic-Con keycards for select San Diego hotels during the convention's run in July. Seriously. With nearly 30 participating hotels, Warner Bros. will release nearly 40,000 keycards featuring DC Entertainment shows including The Flash, Arrow, Gotham, Teen Titans Go!, and Supergirl.

And as an added bonus for Teen Titans Go! cardholders, those cards will feature a special QR code that will enable attendees to watch a free episode of Teen Titans Go! Hey, you'll need something to do on the plane ride home.

Check out all of the keycards in the gallery below.

San Diego Comic-Con runs from July 9-12 at the San Diego Convention Center.