Steven Spielberg has decided to delay the start of production of the Fox-DreamWorks sci-fier “Robopocalypse” because of script and budget issues.The project had been set to go forward this spring, but sources confirmed to Variety that the script wasn’t where the studio wanted it to be, and it was eyeing a smaller budget. Former Fox chairman Tom Rothman came on board in September to produce “Robopocalypse.” Fox had announced that it had come on to the project in 2011. Disney was set to distribute “Robopocalypse” domestically through its Touchstone label while Fox will handle international territories. The companies will share equally in worldwide theatrical revenues. Fox originally slated “Robopocalypse” for release July 3, 2013, but then pushed the pic back to open day-and-date worldwide on April 25, 2014. “Robopocalypse,” a sci-fi epic adapted from Daniel H. Wilson’s novel by scribe Drew Goddard, centers on the fate of the human race after a robot uprising. DreamWorks acquired the rights to Wilson’s unpublished manuscript in November 2009. Spielberg directed two films — “The Adventures of Tintin: Secrets of the Unicorn” and “War Horse” — that were released late last year, followed by “Lincoln,” which has grossed nearly $150 million since its November release.