Ronda Rousey says being a WWE wrestler is more challenging than shooting movies.

The 31-year-old former mixed martial arts star has admitted that performing in front of a live audience in an arena, where there are so many more variables, is much tougher than working on a movie set.

Ronda - who joined the WWE earlier this year - said: "It's very different in that you only get one shot. Everything is live so people aren't going to reset the shot for every scene, so you need to be very aware of where the cameras are at all times to make sure they're catching what's going on."