Producers of the Planet Of The Apes prequel movie were tempted to use real primates in the film - but they scrapped the idea because the beasts would be too difficult to direct.
Actor Andy Serkis plays chief chimp Caesar in the upcoming sci-fi drama Rise of the Planet of the Apes, but director Rupert Wyatt has revealed the Brit almost had to co-star with real primates.
Wyatt tells Total Film magazine, "The other Apes films dealt with talking apes and and apes that were humanoid in many ways. This film isn't about that. It's about apes as apes... We had a choice of using either live apes or Cgi.
"Personally, I had moral problems with the idea of using chimps. And from a practical point of view it would be virtually impossible to get them to do what we need them to do within our schedule."