After graduating from NYU Tisch School of the Arts Matias Mariani worked extensively as a producer in films such as Fish Dreams (Cannes’ Critics Week), Drained (Sundance), Adrift (Cannes Un Certain Regard). In 2014 Matias directed the documentary feature I Touched All Your Stuff, which had its world première at FID Marseille and won Best Editing at the Rio de Janeiro International Film Festival, as well as being released theatrically both in Brazil and the US, followed by the fiction feature Shine Your Eyes, which had its premiere in the Panorama session of the 2020 Berlinale and was purchased by Netflix for worldwide release on July 2020, earning glowing reviews from The New York Times, Variety and Hollywood Reporter.

As a scriptwriter Matias worked on I Bring it With me (best film at Brasília Film Festival), Pendular (FIPRESCI award at Berlinale 2017) and Shine Your Eyes (Berlinale 2020).

Matias is currently writing and directed Cora, together with Gustavo Rosa Moura, a documentary-narrative hybrid set to be released in 2020.