Kellan Lutz has revealed that the Tarzan swagger took some time to perfect.
The Twilight star had to practise his movements to portray the jungle king in Reinhard Klooss' animated motion capture movie, who he also voices.
"The hardest thing for me was learning how to walk Tarzan style," the 27-year-old told Daybreak hosts Aled Jones and Ranvir Singh.
"Twilight is (me) playing a vampire. You're dead essentially so you can't react too well. But for Tarzan, there's just motion capture, there's no hair and make-up. I shot the movie for a month and a half and it's personally the best experience I've ever had."
Kellan enjoyed getting involved in the film's process with the filmmaker.
"I got brought into it about two years down the road - so Reinhardt, the director, writer and producer of it, this has been his passion project for the last 10 years," he explained.
"He just fell in love with the gorilla world and really just wanted to retell this story in more of a contemporary, modern way. When I got brought onto it he had his storyboards, and I've never done anything in the form of motion capture or in that sort of animation and you see how much work goes into pre-production, and then in post with the animation, so it's a big process."
Tarzan opens in cinemas on May 2.