Robert Downey Jr injured on "Iron Man 3" set

LOS ANGELES, Aug 16 (Reuters) - "Iron Man" star Robert

Downey Jr. injured an ankle on the set of the third film in the

superhero franchise, causing delays in production, Marvel

Studios said on Thursday.

Downey, 47, who plays billionaire playboy-turned-superhero

Tony Stark in the "Iron Man" and "Avengers" movies, hurt his

ankle while performing a stunt during filming of "Iron Man 3"

in Wilmington, North Carolina, Marvel Studios said in a

statement.

"There will be a short delay in the production schedule

while he recuperates," Marvel added.

The actor became an unexpected action hero in 2008 when the

first "Iron Man" film made $585 million at the worldwide box

office, followed by "Iron Man 2" two years later, which took

$623 million globally.

"Iron Man 3," due in theaters next year, will reunite Downey

with Gwyneth Paltrow, Don Cheadle and John Favreau, while Ben

Kingsley will play villain The Mandarin.

Downey will also reprise his superhero suit for "The

Avengers 2," which Marvel announced on Thursday will be released

on May 1, 2015.

"The Avengers" scored the biggest box office opening ever in

the U.S. earlier this year, and has grossed $1.5 billion at the

global box office.

Marvel Studios is a unit of Walt Disney Co.