Dwayne Johnson

Actor Dwayne Johnson says he was surprised to know about the no direct contact rule for gorillas. "The first thing I learned -- and it surprised me -- was that you can't have much contact with gorillas. When we started prepping the film, I thought, well, I'll go to the San Diego Zoo and spend time with the gorillas there. There was respect, though no direct contact," Johnson said in a statement to IANS.