In this case you can’t accuse Hollywood of not planning ahead. With Martin Campbell’s Green Lantern film still over a year from release, Warner Bros. is already getting ready for a sequel.

The studio has reportedly hired writers Greg Berlanti (Everwood), Michael Green (Kings) and Marc Guggenheim (Eli Stone) to put together a treatment for the next installment of Green Lantern. These are the same writers who penned the first film so obviously the studio must be pretty happy with their work to bring them back again.

Reinforcing that is the news that the trio, in addition to working on a new Green Lantern, will also be working on a treatment for another comic book adaptation: The Flash. According to the report, the writers would work on both treatments and would eventually be selected to write the screenplay for one of the two projects, although which one is still to be determined.

It’s encouraging that Warner Bros. seems to feel so confidant in Green Lantern. It’s a rare move by a major studio to work on a sequel to a film this far in advance, especially one that hasn’t even been finished or released yet. Let’s hope this means Green Lantern will be the awesome film we all hope it will be.

Green Lantern is currently filming in new Orleans with an expected release next year.

A few weeks ago, blog-o-sphere guru Rick Marshall was a guest on The Flickcast, and on the show we discussed how monotonous it can be when a rumor starts and every news site and it’s mother decides to post about it. We’ve decided to feed the bottomless machine here by giving slightly more stock to the rumor that pop star Justin Timberlake screen tested and is being “seriously considered” for the role of the Green Lantern in a big screen adaptation.

The rumor comes from big, red Harry Knowles over at Ain’t it Cool News, who supposedly got the news from Leavesden Studios, the company who will be working on the film. There’s no telling if this information is legit, or just another rumor like Cher as Catwoman and Eddie Murphy as The RIddler. Either way, it seems to be a way better choice than Jack Black, who was rumored to be playing the titular role a few years back.

The actual film, which isn’t a rumor, will be written by Greg Berlanti (Eli Stone) and Michael Green (Heroes), with Martin Campbell (Casino Royale) in the director’s chair. Other names that have been tossed around for the main role range from Bradley Cooper to Common to Ryan Gosling. The next thing Timberlake has on his plate is Shrek Forever After and 46 more appearances on Saturday Night Live.