Complex sentence: Originally joining the project as a consultant, Gorō was asked to draw the storyboards for the film adaptation of "Tales from Earthsea", and after viewing his storyboards producer Toshio Suzuki decided Gorō should direct the film.
Split into simpler sentences: Originally joining the project as a consultant, Gorō was asked to draw the storyboards for the film adaptation of "Tales from Earthsea". After viewing his storyboards, producer Toshio Suzuki decided Gorō should direct the film.