Steven Spielberg has said that he is re-writing the Robopocalypse script.

The 66-year-old director has explained that the production will definitely go ahead after he has completely re-worked the concept on a much smaller budget.

Speaking to EW, Spielberg said: ''We found that the film was costing a lot of money and I found a better way to tell the story more economically but also much more personally.

"I found the personal way into Robopocalypse, and so I just told everybody to go find other jobs. I'm starting on a new script and we'll have this movie back on its feet soon.''

The film was initially pitched for an April 2014 release, but Spielberg has now estimated a delay of six to eight months.