Warner Bros. is doing a little release date shifting, as they’ve moved the release date of Guillermo del Toro’s next directorial effort Pacific Rim up two months to May 10th, 2013 (per Deadline). The sci-fi pic had previously been dated for July, but it looks like it’ll open during a very crowded May. Iron Man 3 is slated to open a week earlier, on May 3rd, with Roland Emmerich’s own sci-fi flick Singularity set to open a week later on May 17th. Justin Lin’s Fast and Furious 6 and Gore Verbinski’s no longer on hold (after some budget and story shifts) The Lone Ranger also open later that month. In other words, our eyeballs may suffer some intense fatigue by the end of the first month of the Summer movie season.Set in the future, Pacific Rim centers on an epic battle between humans (aided by human-manned robots) and attacking monsters. Production on the film is set to get underway next month. The cast includes Charlie Hunnam, Willem Dafoe, Idris Elba, Charlie Day, Rob Kazinsky, Max Martini, Diego Klattenhoff, and Clifton Collins Jr.