Variety is reporting Zoe Saldana has joined the cast of “ I Kill Giants ” as a school psychologist opposite Madison Wolfe’s misfit girl battling both real and imaginary monsters in her life. Anders Walter is directing “Giants,” based on Joe Kelly’s 2008 graphic novel, with filming set to begin in early 2016. XYZ Films is handling international sales and is meeting with distributors at the Toronto Film Festival. Producers are Chris Columbus through his 1492 Pictures/Ocean Blue Entertainment; Justin Nappi through his company, Treehouse Pictures; Kim Magnusson; Man of Action Entertainment, where Kelly is a partner; and XYZ Films. Treehouse Pictures, which acquired the movie rights in March, is also financing the film. Kelly, who created the graphic novel with illustrator Ken Niimura, has also written the screenplay adaptation. Saldana stars as psychologist Mrs. Mollé, who plays a key role by helping the protagonist face both internal and external threats, forming a bond with