Ronald Bronstein

 ( 1970s Births ) 

He attended NYU film school but dropped out.

He made his debut in 2007 with the film Frownland. He directed, wrote and edited the film. It received critical acclaim and won the Special Jury Award at the 2007 SXSW Film Festival. The film has been described by critics as one of the most bold, original and important independent films of the century. In 2022, it was released as part of The Criterion Collection.

He worked on the film Yeast in 2008 as an assistant and editor. His wife, Mary Bronstein directed and stars in the film. The film also stars Greta Gerwig. Josh Safdie and Benny Safdie appear in the film.

In 2009, he began his creative partnership with the Safdie brothers with the film Daddy Longlegs. He co-wrote, edited and also appeared in the film as an actor. He won a Gotham Awards for Breakthrough Actor.

In 2014, he co-wrote and co-edited Heaven Knows What.

In 2017, he co-wrote and co-edited the film Good Time starring Robert Pattinson.

In 2019, he co-wrote and co-edited Uncut Gems starring Adam Sandler. The development and writing process was over 10 years, involving 160 drafts. He won an Independent Spirit Award for best editing, sharing the award with Benny Safdie.

After the Safdie Brothers ended their directing partnership in 2024, he continued to collaborate with the Safdies on individual projects. He is a co-writer, editor and producer for Josh Safdie's Marty Supreme starring Timothee Chalamet. It released on December 25, 2025 by A24.

Bronstein formed Central Pictures, a production company alongside Josh Safdie and Eli Bush in 2024. He is also a partner in Elara Pictures with the Safdie brothers.

Feature films