Warner Bros. released a trailer for “The 15:17 to Paris” Wednesday, just six months after the studio announced that the three Americans who stopped a terrorist attack on that train in 2015 would play themselves on the big screen.

Clint Eastwood directed Air Force Staff Sgt. Spencer Stone, Oregon National Guard Spc. Alek Skarlatos and civilian Anthony Sadler in the drama. Judy Greer (”Ant-Man,” “13 Going on 30,” “Archer”), Jenna Fischer (“The Office,” “Blades of Glory”) and Thomas Lennon (“The Odd Couple,” “Reno 911!”) will join the train heroes on screen.

The film’s based on a book of the same name co-authored by the trio and Jeffrey E. Stern in 2016. It will be the third in a series of true-life heroism stories from Eastwood, who directed Tom Hanks in “Sully” (2016) and Bradley Cooper in “American Sniper” (2014).

Aside from Skarlatos appearing on “Dancing with the Stars” shortly after the train attack, the trio appears to have little on-camera experience.

The men, friends since childhood, were riding the train during their European vacation when an attacker shot and wounded a fellow passenger. The trio and other passengers subdued the man after his rifle jammed; four people were injured, including Stone, who suffered stab woulds during the incident. French police say the shooter, Ayoub El-Khazzani, had ties to radical Islam.