Warner Bros has delayed the release of its sci-fi action movie Green Lantern by six months.

The comic book adaptation had initially been handed a December 17, 2010 release date, but the studio has now pushed it back to June 17, 2011.

Martin Campbell (Casino Royale) will direct the film in Australia later this year from script by Greg Berlanti, Michael Green and Marc Guggenheim.

Bradley Cooper is the latest actor to emerge as a contender for the coveted role. He can next be seen in comedy The Hangover, released in the UK on June 12.