The Daily Telegraph reported Britons were posting hoards of tributes to the films and celebratory messages for the unofficial holiday Tuesday on Twitter and Facebook while ABC News said U.S. users of the Web sites were following suit.
Star Wars Day, one of the main "trending topics" on Twitter Tuesday, began after George Lucas, the creator of the films, gave an interview on German TV and the famous catchphrase "may the force be with you" was mistranslated into the German equivalent of "we are with you on May 4," ABC News reported.
The phrase has evolved into the day's motto, "may the fourth be with you."
"It's nice that this particular date seems to observe and celebrate the power of the force, and we're thrilled that 'Star Wars' fans continue to find new ways to connect with a galaxy far, far away," a spokesman for California-based Lucasfilm told the Telegraph.
The original film, "Star Wars: A New Hope," premiered May 25, 1977.