If you haven't given Triple Frontier a go on Netflix, you definitely should. If you're unfamiliar, the story follows five Special Forces veterans who travel to a multi-bordered region of South America to take money from a drug lord. It stars Ben Affleck, Oscar Isaac, Charlie Hunnam, Pedro Pascal, and Garrett Hedlund, who all do a fantastic job capturing the attitudes of their characters. But one thing especially helped make this film feel realistic: the presence of Special Forces veterans.

While Hollywood productions generally do have military advisors, it isn't necessarily common that those advisors take the time to work with the cast to really nail down things like tactics and weapons handling. In this case, J.C. Chandor had two Special Forces veterans who did just that — Nick John and Kevin Vance.

Here's why they were the most important part of the production:



They taught the actors about nicknames

Charlie Hunnam plays William Miller who goes by the nickname "Ironhead," and, of course, he wanted to know why, so he asked one of the advisors who explained that the nickname likely comes from the character having survived a gunshot to the head.

This may not seem like a big deal but nicknames are a huge part of military culture and knowing how service members earn their nicknames can help you really understand the culture itself.

(Netflix)

They taught the actors how to handle weapons

Most of us who spent a lot of time training in tactics can really tell when the actors on screen haven't had enough training, if any at all. It's probably most evident in the way they handle weapons. In the case of Triple Frontier, Nick John and Kevin Vance really took the time to train the actors, and it shows.

This film will have you saying, "Wow, these actors actually know what they're doing with that weapon."

(Netflix)

They trained the actors with live ammunition

When learning how to handle a weapon, it helps to shoot live ammunition. Well, at the end of the first day of the two-week training, Nick John felt the actors were prepared to handle it. So, they gave them live ammunition and let them shoot real bullets, which is not standard for a film production, but it really pays off in this film.

They taught tactics

After trusting the actors with live ammunition, Nick John and Kevin Vance ran them through tactics. From ambushes to moving with cover fire, the actors learned the basic essentials to sell their characters on screen, and they do so extremely well.

Actor Charlie Hunnam said, "It was amazing. I was shocked by how much trust they put in us. Very, very quickly, they allowed us to be on the range with live fire, doing increasingly complex maneuvers. We started ambush scenarios, shooting through windows and panes of glass, doing cover fire, and operating movements I've never done before."

The way these actors clear buildings is very smooth and convincing.

(Netflix)

They made this movie feel realistic

Veterans have a tendency to spot inaccuracies immediately. But, what Triple Frontier brings to the table is realism. While not perfect, it does a great job of really making you believe these characters are real and all the work Nick John and Kevin Vance put into teaching the actors really pays off.

If you haven't checked out Triple Frontier on Netflix yet, you definitely should.