Actor Andy Serkis stunned his King Kong co-stars by flying out to Rwanda to spend time with gorillas - to prepare him for his role in the remake.
The Lord of the Rings star is so determined to adopt the right mindset ahead of the big budget Peter Jackson film, he's willing to trying any method to enhance his understanding of the movie.
And actress Naomi Watts - who will play Fay Wray, the object of giant gorilla King Kong's desire - is astounded by Serkis' dedication to his work.
She says: "He's extraordinary, the amount of research he's done. He brought back incredible tapes of gorilla behaviour that we need to get very familiar with."