In an interview dated July 7, director Matt Reeves spoke about the filming and plot of Dawn of the Planet of the Apes, revealing that he did a rewrite on the original script and switched things up just a few weeks before they were to start shooting for the movie.

Speaking to SlashFilm, Reeves revealed that he had a lot on his plate right before filming and things were rushed because he was not to pleased with the original plot the producers came to him with.

"When I first arrived, [Fox] pitched me the story they were gonna do and I thought I wasn't gonna do the film. I wasn't gonna do the film because it was a story that I didn't quite connect to," he said.

The director went on to reveal what was being suggested and hwo he changed the direction of the story with his rewrite.

"It took place in San Francisco, post apocalyptic San Francisco. And basically the first or second scene had the apes joining the humans and it all took place in the city and they were pushing up power lines and there was all this stuff that I just didn't quite get," he said. "But the thing that really I didn't get because I wanted to see what led up to it was that they were already much more articulate than they are in the final film now. They were basically fully conversant. They could speak. And I was like wait a minute, what I thought was so cool in Rise was that the apes are coming into being. And that is what I found riveting. Like watching Andy, and behind his eyes in his performance, you see this kind of roiling sort of sense of emotion and a desire to express himself. And when he finally speaks, when he finally says no, it's kind of breathtaking. But it's all because it's been this simmering build up to finding a way to say something. And when he does, it's powerful."

In the movie, Gary Oldman plays Dreyfus, who will be leading the human race to stand up to the leader of the apes, Caeser (Andy Serkis). Jason Clarke, who plays Malcolm, and Keri Russell, who plays his partner, also star in the movie.

Dawn of the Planet of the Apes will release in July 18 2014.

Watch the trailer here: