Los Angeles, March 21 (IANS): Actor Tom Cruise spent a year training for a sequence in the upcoming action spy thriller film "Mission: Impossible 6", says producer David Ellison.

Ellison said it was "the most impressive" thing Cruise had done in the movie franchise, reports aceshowbiz.com.

"What Tom is doing in this movie I believe will top anything that's come before," Ellison told news portal Collider. 

"It is absolutely unbelievable - he's been training for a year. It is going to be, I believe, the most impressive and unbelievable thing that Tom Cruise has done in a movie, and he has been working on it since right after 'Rogue Nation' came out. It's gonna be mind-blowing," he added. 

Explaining the reason behind Cruise's willingness to undergo the extensive training and many practical stunts by himself, Ellison said: "It all comes from the best place. It is all about entertaining an audience".

The filming of "Mission: Impossible 6" will begin on April 10 in Paris, London and New Zealand. 

"Mission: Impossible 6" is set to release on July 27, 2018.