Principal photography has begun in Seoul, South Korea, on Netflix’s Okja, Bong Joon-Ho’s anticipated Snowpiercer follow-up, starring Tilda Swinton, Jake Gyllenhaal and Paul Dano.

Steven Yeun (The Walking Dead), Lily Collins (To The Bone), Devon Bostick (The 100), Byun Heebong (The Host), Shirley Henderson (Anna Karenina), Daniel Henshall (The Babadook), Yoon Je Moon (Mother) and Choi Wooshik (Set Me Free) round out the cast.

Written by Bong and Jon Ronson (Frank), Okja follows Mija, a young girl who must risk everything to prevent a powerful, multi-national company from kidnapping her best friend – a massive animal named Okja. Mija will be played by Seohyun An. The film will be shot in South Korea, Canada and the U.S., in English and Korean.

Brad Pitt, Dede Gardner, Jeremy Kleiner, Lewis Taewan Kim, Dooho Choi, Woo-sik Seo and Bong Joon Ho are producers on the film. Okja is a Plan B, Lewis Pictures and Kate Street Picture Company production.

Okja will premiere globally on Netflix in 2017 and will also have a limited day and date theatrical release in the U.S. Netflix is also looking for theatrical partners for a day and date release in select international territories, including Korea.