EXCLUSIVE: While reports had Damon Lindelof coming in to write a new ending to the Marc Forster-directed Brad Pitt-starrer World War Z, it actually was his Lost compadre Drew Goddard who did the bulk of the writing of the finale. Lindelof, who reworked Prometheus and co-wrote the Star Trek sequel, cracked a potential new ending of the film, but Lindelof didn’t have time to do the scripting so that task fell to Goddard, who most recently adapted Robopocalypse, which is Steven Spielberg’s next film at DreamWorks.

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Both of those guys are off to other projects, so it’s quite possible that Paramount will tap another writer to punch up this ending — if the studio decides to use it. I’m hearing Christopher McQuarrie, whom the studio is high on after he adapted and directed Tom Cruise in Jack Reacher, based on the Lee Child novels. That isn’t set in stone because McQuarrie is Cruise’s go-to guy and he will be doing some script work on All You Need Is Kill, the Doug Liman-directed action film that Cruise will next star in after he completes Oblivion. So it is questionable whether he will be available or whether Paramount will need him. No date has been set for the reshoots that will be needed to implement the new ending, but insiders say Forster will be shooting those scenes.

Much has been written about the problems on WWZ, and while those problems are legitimate ones, that doesn’t mean this movie is going to be a train wreck. It’s based on a superb Max Brooks novel, and the angle — looking back on the thwarting of a zombie apocalypse — is an original one. There is still a lot to be excited about here.