Billy Lynn's Long Halftime Walk is a 2016 war drama film directed by Ang Lee and written by Jean-Christophe Castelli, based on the 2012 novel of the same name by Ben Fountain. The film stars Joe Alwyn, Garrett Hedlund, Kristen Stewart, Vin Diesel, Steve Martin, and Chris Tucker. Principal photography began in April 2015 in Georgia. The film is a co-production between the United States, the United Kingdom, and China.

The film had its world premiere at the 54th New York Film Festival on October 14, 2016, and was theatrically released in North America on November 11, 2016, by TriStar Pictures. It had high production costs associated with being the first-ever feature film using an extra-high frame rate of 120 frames per second, further complicated by the 3D format, at 4K UHD resolution. The film received mixed reviews from critics and underperformed at the box office, grossing $31 million worldwide against its $40 million budget.