A worker at Walt Disney World is recovering after being injured by a 400-lb (180kg) runaway fake boulder prop in an incident caught on video, the Florida theme park confirmed.

The incident took place at the Indiana Jones Epic Stunt Spectacular! during a live recreation of a famous scene from the film.

Video shows the boulder rolling towards the audience as a staff member jumps into its path, preventing it from reaching the crowd.

We're focused on supporting our cast member, who is recovering, Disney said in a statement on Wednesday. Safety is at the heart of what we do, and that element of the show will be modified while our safety team completes a review of what happened.

The scene from 1981's Raiders of the Lost Ark shows Indiana Jones - played by Harrison Ford - outrunning a giant boulder triggered by a booby trap, before leaping to safety.

Video of the incident on Tuesday shows the boulder bouncing off its tracks, then bounding towards the audience as a staff member steps in front and is knocked to the ground.

The staff member did not appear to stand up immediately, and other workers ran to his side.

According to a blog run by the park, the boulder prop is approximately 400-lbs and made of rubber.

A spokesperson for Disney did not confirm that the boulder was the cause of the incident, but told CBS News, the BBC's US partner, that a prop moved off its track.

One witness told People magazine that the worker had saved the audience from being injured. It was a crazy experience and definitely one that we will remember.

In one video of the incident, a man behind the camera is heard saying: He literally saved our lives, that guy.