The heated clash between Charles Bronson and Lee Marvin, and nine other stories from the set of 'The Dirty Dozen'

The Dirty Dozen (1967) is a classic war film that features some of Hollywood's most famous stars of the era, including Charles Bronson, Ernest Borgnine, Lee Marvin, Donald Sutherland, and George Kennedy—alongside many others! The plot follows 12 convicts who are trained by the Allies for a Commando mission shortly before D-Day, delivering excitement from beginning to end.

Here are some lesser-known facts about The Dirty Dozen that you may find intriguing.

The Filthy Thirteen

We’ll start by looking at the real-life group that inspired The Dirty Dozen 's source material . Known as the " Filthy Thirteen ," they were part of the 1st Demolition Section, Regimental Headquarters Company, 506th Parachute Infantry Regiment, 101st Airborne Division during World War II.

The group earned their distinctive moniker while stationed in England, due to their habit of bathing no more than once a week. Once in mainland Europe, they were tasked with sabotaging enemy targets behind the lines. Their engagements included D-Day and Operation Market Garden .

Jim Brown retired from the NFL while filming The Dirty Dozen

Actor and football player Jim Brown starred as Robert T. Jefferson in The Dirty Dozen , and while he enjoyed making the movie, it got him into trouble with the National Football League (NFL).

Production ran longer than expected, meaning the fullback risked missing training camp for the 1967-68 football season. In fact, things got to the point where the owner of the Cleveland Browns, Art Modell, actually threatened to fine and suspend Brown if he didn't report to the camp. That's when he did something no one expected: he held a press conference to announce his retirement from the sport.

That's one way to stick it to the man!

Donald Sutherland almost didn't appear in The Dirty Dozen

It's hard to imagine anyone other than Donald Sutherland portraying Vernon L. Pinkley in The Dirty Dozen , but that was almost the case! He was actually the second person cast in the role, with the original actor dropping out last minute because he felt the part was beneath him.

We bet whoever it was regretted their decision, considering how popular the movie was (and still is).

One of the largest sets ever built

The French château featured in The Dirty Dozen is pretty grand, but did you know it's considered one of the largest set pieces ever built ? The brainchild of art director William Hutchinson and his 85-man crew, it spanned 240 feet and rose 50 feet. When it was complete, gardeners were brought in to plant six weeping willows, 450 shrubs, 30 spruce trees, 5,400 square yards of heather and 400 ferns.

What's more, the château was so well-built that 70 tons of explosives would have been needed to blow it up. As such, a replica made from plastic and cork was built of one section.

Serving as an anti-war allegory for Vietnam

Although The Dirty Dozen is a war movie, director Robert Aldrich intended it to serve as an anti-war allegory for the Vietnam War . as was the intention of director Robert Aldrich. This is evident in the film's anti-military and -authority tones .

Released when the United States was deeply involved in the Vietnam conflict, the film is widely regarded as one of the earliest public critiques of the war, even though it is set during World War II.

Lee Marvin's alcoholism was a major problem during filming

It's a known fact that Lee Marvin struggled with alcohol during his lifetime, and his addiction became a big problem during the production of The Dirty Dozen . It's said his issues stemmed from his wartime service, having served with the US Marine Corps throughout the Pacific Theater during the Second World War.

One scene required Marvin's character, Maj. John Reisman, to drive an armored truck, with Joseph Wladislaw ( Charles Bronson ) sitting in the passenger seat. However, when the time came to shoot the part, the actor was nowhere to be found. Crewmen later found him at a pub and brought him back to set, where they had him drink coffee to try and sober up.

Upon his arrival, Bronson came up to him and said , "I'm going to f*****g kill you, Lee."

John Wayne as Maj. John Reisman?

Like Donald Sutherland, Lee Marvin wasn't the first choice to play Maj. John Reisman in The Dirty Dozen —another Hollywood heavyweight was initially offered the role. Who was it, you wonder? None other than the Duke himself, John Wayne !

Wayne, a veteran of war films like The Longest Day (1962) and The Alamo (1960), ultimately declined the role due to his personal convictions. The actor didn't approve of he character’s affair with an enlisted man’s wife while her husband was off fighting overseas.

Additionally, Wayne turned down the role to focus on a project aimed at rallying public support for the Vietnam War, as American backing for the conflict had started to wane at that time.

Several members of the cast served during World War II

As with many military movies released in the post-war era, The Dirty Dozen featured a number of veterans:

• Lee Marvin, US Marine Corps - He saw action as a scout sniper and was injured during the Battle of Saipan .
• Robert Webber, US Marine Corps - He served as a 776-Radio Operator (Low Speed) in Guam and on Okinawa.
• Charles Bronson, US Army Air Forces - He flew 25 combat missions over Japan aboard a Boeing B-29 Superfortress .
• Ernest Borgnine , US Navy - He was dispatched to the Atlantic coast aboard the patrol yacht USS Sylph (PY-12).
• Telly Savalas, US Army - While never deployed overseas, he was stationed out of Camp Pickett , Virginia from 1941-43.
• George Kennedy , US Army - He served under Gen. George Patton and saw action during the Battle of the Bulge .
• Robert Phillips, US Marine Corps - He was a self-defense instructor with the service throughout WWII.
• Clint Walker, Merchant Marine - He quit school and enlisted in the Merchant Marine when he was just 17 years old.
• Robert Ryan, US Marine Corps - He served as a drill instructor at Marine Corps Base Camp Pendelton , California.
• Richard Jaeckel, Merchant Marine - He enlisted close to the end of the war and remained with the service until 1949.
• Ralph Meeker, US Navy - He only served for a few months before being discharged for an injured neck.

Four of the actors reunited over 30 years later

It's uncommon for two actors to reunite for a future project, let alone four, but that's exactly what happened 31 years after The Dirty Dozen premiered. Ernest Borgnine, Clint Walker, George Kennedy, and Jim Brown were among those who voiced characters in the 1998 film Small Soldiers , directed by Joe Dante.

The movie revolves around toys that gain sentience after being fitted with a military microprocessor—imagine Toy Story (1995), but with a darker, less kid-friendly twist.

From The Dirty Dozen to M*A*S*H

As aforementioned, Donald Sutherland portrays Vernon L. Pinkley in The Dirty Dozen , but did you know that the role is the very reason he was cast in 1970's M*A*S*H ? It's true!

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The scene where Pinkley pretends to be a general to inspect Col. Everett Dasher Breed's (Robert Ryan) troops wasn't intended to feature the character. It was initially written for Clint Walker, but the actor felt too uncomfortable and it was given to Sutherland. It's said this scene was the main reason why the Canadian actor was given the role of Benjamin "Hawkeye" Pierce in M*A*S*H .