The Rock talks G.I. Joe

Dwayne "The Rock" Johnson says hard work has been the key to his success.

Dwayne "The Rock" Johnson arrives at the Premiere of "G.I. Joe: Retaliation" at TCL Chinese Theatre on 28 March 2013. Picture: AFP

NEW YORK - Dwayne "The Rock" Johnson has told Eyewitness News hard work has been the key to his success.

The actor, who has helped a number of movie franchises do big business at the box office, stars in G.I. Joe, which opened in South Africa this weekend.

Johnson used to steal G.I. Joes as a child because his family was too poor to afford them, but he says he grew up learning one abiding lesson.

"There's no substitute for hard work."

The star says he hopes to be in the next instalments too.

"If you're really able to pay attention to the mythology then I think you are able to make the franchise work."

Johnson's next role will be Hercules.