Marathon Media and Studio 37 are turning the hit animated French TV series "Totally Spies!" into a Summer 2009 major feature film says The Hollywood Reporter.

The show follows three teenage girls from Beverly Hills who accidentally become international secret agents, the film will explain what the series has yet to address - namely how the heroines became secret agents to begin with.

With five seasons and more than 130 episodes under its belt, "Spies!" ranks among the top five highest-rated children's programs in the world. The $12 million feature film production will mix traditional animation and 3D.