LOS ANGELES – Stephen Chow is Kato no more.

The actor-filmmaker has walked away from Columbia Pictures' "Green Hornet" feature after what the studio characterized as a "mutual and amicable decision by both sides to move on."

Seth Rogen is starring in the big-screen treatment of the crime-fighting hero, with Michel Gondry directing.

Chow initially was the director of the project but dropped out in December because of creative differences. At the time, he remained on board to play the Hornet's sidekick and chauffeur.

The movie, whose cast now includes Cameron Diaz in the female lead role, is on track to begin production in September.