"My husband is doing really well," Katie told Access Hollywood's Maria Menounos at Variety's second annual Power of Women luncheon event in Los Angeles. "He's in Prague right now and they've started filming."
Tom was recently photographed in the Czech Republic, sporting a mustache and uniform while filming the action thriller, and his stunning spouse said she expects the upcoming film to eclipse the previous three box office hits.
"They are doing stunts that are bigger and better than ever," Katie told Maria. "Then they are going to Dubai and Vancouver, so it's going to be a very cool movie."
As for the couple's 4-year-old daughter, Katie said Suri has adapted to the Cruise family's rigorous travel schedule.
"We make everything work," "The Extra Man" star said. "We're kind of a movie family."
As previously reported on AccessHollywood.com, "The Town's" Jeremy Renner will star alongside Tom in "Mission: Impossible IV," which is currently slated to be released on December 16, 2011.
Copyright 2010 by NBC Universal, Inc. All rights reserved.
This material may not be published, broadcast, rewritten or redistributed.
Related Content from AccessHollywood.com:
VIEW THE PHOTOS: Variety's Power Of Women Luncheon