Francotirador

To gain 40+ pounds, Bradley Cooper ate around 6,000 calories a day, which calculates to eating a meal every 55 minutes. Cooper added that it was not fun consuming those calories since his meals were usually in the form of bland protein shakes he had to choke down between weight lifting. Using his own trainer, he worked out four hours a day for several months. Cooper also took twice-daily lessons with a vocal coach, and spent many hours studying footage of Chris Kyle. When it came to pointing a rifle, Cooper trained with Navy S.E.A.L. sniper Kevin Lacz, who served with Kyle and was a consultant on this movie.

A SEAL would not be allowed to informally lead another unit's breaching operation, even if it was to "show them a thing or two to keep everyone [alive]". A breaching & room clearing operation is a finely tuned and intensively drilled routine, where each individual knows and performs his specific role relative to the group. An outsider, even a SEAL, inserting themselves into the middle of such a delicate operation with no prior familiarization would jeopardize the safety of the entire team and would never be allowed.

Footage of the real Chris Kyle's memorial service is featured during the first half of the end credits, while the instrumental "The Funeral" by Ennio Morricone plays on the soundtrack. Following the music and the footage, the rest of the end credits play in complete silence.

Featured in The Tonight Show Starring Jimmy Fallon: Bradley Cooper/Harry Connick Jr./Big K.R.I.T. ft. Raphael Saadiq (2015)