The movie Thoroughbreds premiered at the 2017 Sundance Film Festival .
The film had its world premiere at the Sundance Film Festival on January 21 , 2017 , and was released in Los Angeles , on March 9 , 2018 , by Focus Features and it was released in the United States on April 6 , 2018 , also by Focus Features.
Thoroughbreds -LRB-2017 film-RRB-