Zoe Saldana costars in the graphic-novel adaptation, premiering Sept. 9 at TIFF

Director Anders Walter’s new film I Kill Giants tells the story of Barbara Thorson (Madison Wolfe), a teenage girl who chooses to escape the realities of school and a drab family life by retreating into her own magical world of titans and giants. With the help of her new friend Sophia (Sydney Wade) and her school therapist (Zoe Saldana), Barbara learns to battle her giants and face her fears — tackling the bullies at school, her sister (Imogen Poots), and her difficult home life.

Speaking to EW earlier this year, Zaldana said her character in the film is “trying to find a way inside the mind of this little girl, and trying to find a way to heal her, and help her with her affliction.” She added, “What I loved about this [project] is that, one, Anders is a really great director, and I really believed in his vision, and I think he has amazing potential to becoming a great director in cinema. And, two, it was an all-female cast. I loved the fact that I was supporting an independent movie that was being told through the eyes of a little girl.”

I Kill Giants is an adaptation of Joe Kelly and Ken Niimura’s Man of Action/Image Comics graphic novel of the same name. The film is produced by Chris Columbus, Michael Barnathan, Kim Magnusson, Adrian Politowski, Nick Spicer, and Kyle Franke.

I Kill Giants will make its world premiere at the Toronto International Film Festival on Sept. 9. Watch an exclusive clip from the film above.