One of the biggest films of the year and certainly the most special effects heavy, Green Lantern, hits theaters a month today. Even though the film hasn’t been seen by the public, Warner Bros. and DC Entertainment already commissioned writers to prep a script for Green Lantern 2 nearly a year ago.

Green Lantern is just the beginning to Warner Bros.’ biggest tentpole franchise post-Harry Potter, and they’re absolutely banking on Ryan Reynolds returning for sequels. If you’re excited for Hal Jordan’s debut this summer and end up loving it, you may disappointed that director Martin Campbell may not be back for Green Lantern 2.

In an interview found in the July issue of Total Film, Campbell explains the bigger picture goals of the movie as the foundation of the franchise, indicating that he’s done his part for others to take the helm from here on in.

“This film has become the instruction manual if they do any further ones. It’s what we call pipe laying.”

The pile of Green Lantern set visit reports that debuted yesterday emphasized the toll on Martin Campbell the film took. With a 100-day shoot and him waking up in the early AM every day, only to work extremely long hours in order to have this complex film ready to go for its precious summer release date, it’s certainly something one does not look forward to jumping into again.

Even looking at Campbell’s track record, he made The Mask of Zorro in 1998 and it took seven years for him to direct the sequel. The same thing happened with the James Bond franchise when he directed Pierce Brosnan in 1995’s Goldeneye, returning with Daniel Craig as 007 in 2006’s Casino Royale.

Needless to say, Warner Bros. will push for the sequel quickly so don’t expect Campbell for Green Lantern 2 but maybe he’ll be back for Green Lantern 3. Let’s wait to see how well this does at the box office first as the hard part is over and the sequel won’t be as much of a challenge with the designs, concepts and process already done. Check out the latest theatrical Green Lantern trailer to see it come to fruition.

Green Lantern stars Ryan Reynolds, Blake Lively, Peter Sarsgaard, Mark Strong, Temuera Morrison, Geoffrey Rush, Tim Robbins, Michael Clarke Duncan and Angela Bassett. The film’s tie-in video game, Green Lantern: Rise of the Manhunters, releases June 7th.

Green Lantern hits 2D and 3D theaters on June 17, 2011.

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Source: Total Film (via CBM)