Sydney, July 13 : Actor Hugh Jackman called up actor-wrestler Dwayne Johnson, popularly known as The Rock, to take tips on how to build lean muscle.

"The Wolverine" actor saw Johnson's well-built body in his movies, after which he called him up to find out how to get a similar body, reports eonline. com.

"I know Dwayne and I rang him and said, `Buddy, I saw you in `The Tooth Fairy' and then I saw you in an action movie and you are massive. How do you do it?'," Jackman said.

"He said, `Okay, you want to put on 25 pounds of lean muscle? You need six months. You need to eat 6,000 calories and here it is'," added Jackman. (IANS)