Matías Bize (born Santiago, Chile, 9 August 1979) is a Chilean film director, producer and screenwriter.

His short film Last Night was a prequel to Saturday, starring the same actors (Blanca Lewin and Víctor Montero) in the same roles.

Saturday, a tragicomedy about a wedding cancelled at the last minute, had its worldwide premiere at the 2003 International Filmfestival Mannheim-Heidelberg where it won four awards, including the Rainer Werner Fassbinder Prize for Best Film “for its freshness, innovation and energy”, the Best Actress award and the Critics’ Prize.

[7] Two years later, Bize directed the feature-length In Bed[8](Spanish: En la Cama), a Chilean-German production that premiered at the Locarno International Film Festival in Switzerland.

In total, In Bed won more than 35 international awards and went on commercial release in many countries across the world.