TOM CRUISE wants to reprise his role as secret agent ETHAN HUNT for a fifth MISSION: IMPOSSIBLE movie.

The fourth installment in the franchise, 2011's Mission: Impossible - Ghost Protocol, became the Hollywood star's biggest hit to date after pulling in more than $600 million at the international box office.

Now Cruise, who also produces the high-octane films, admits he's started working on concepts for another adventure.

He tells Total Film magazine, "I'll make as many as people want to see. Because they're very challenging and so much fun to make...

"We're already working on different images. Talking conceptually. I love traveling around promoting different movies because I'm always looking at different places, and I always walk around to see the city. I look at architecture, subways... coming up with different sequences."