Hollywood previsualization specialist the Third Floor has joined forces with U.K. visual effects house Framestore to launch a previs operation in London.

The Third Floor London has already been commissioned to work on Carl Rinsch’s “47 Ronin” and Marc Forster’s “World War Z.”

“This is a genuinely exciting venture that will be a serious boost to the burgeoning European film market,” said Framestore CEO William Sargent.

“We’re excited to offer the best storytelling tools and talents to inspired directors throughout Europe,” said Third Floor CEO Chris Edwards.

“Our partnership with Framestore enables us to help directors and their entire crews maintain and realize their vision from early development through to the final visual effects.”

Previsualization, or previs, is a process akin to digital storyboarding for movies relying heavily on vfx, allowing filmmakers to plan how to integrate live action and CG elements.

The Third Floor was founded by the previs team that worked on “Star Wars Episode: III — Revenge of the Sith,” and its credits include “Avatar,” “Star Trek,” “Thor” and “Alice in Wonderland.”

The partnership with Framestore grew out of working together on Steven Spielberg’s “War Horse.” Third Floor London will be based at Framestore’s HQ, and the two companies will share staff, tools, skills and contacts.