Hell to Eternity is a 1960 American World War II film starring Jeffrey Hunter, David Janssen, Vic Damone and Patricia Owens, directed by Phil Karlson. This film biopic is about the true experiences of Marine hero Pfc. Guy Gabaldon (played by Hunter), a Los Angeles Hispanic boy raised in the 1930s by a Japanese American foster family, and his heroic actions during the Battle of Saipan. Sessue Hayakawa played the role of Japanese commander at Saipan.

In Depression-era Los Angeles, Guy Gabaldon gets into a fight at school when another boy snitches about his breaking into a grocery store. After Japanese-American Kaz Une (the brother of Guy's physical education teacher and friend George) learns that Guy's mother is in the hospital and his father is dead, he invites Guy to stay with his family. As Kaz's parents speak little English, Guy begins to learn Japanese. Then, when Guy's mother dies, the Une family adopts him. He becomes especially close to Kaz's mother.

After the attack on Pearl Harbor and the US entry into World War II, Gabaldon's foster family is sent to an internment camp: Camp Manzanar. Gabaldon is drafted, but fails his physical exam due to a perforated eardrum. When Gabaldon goes to visit the Une family, he learns that George and Kaz have been allowed to join the Army and are fighting in Italy with the 442nd Regimental Combat Team. After making sure that "mama-san" does not object, he manages to enlist in the Marines on the strength of his language skills.

Gabaldon does not make a good first impression on Platoon Sgt. Bill Hazen at Camp Pendleton, but wins him over. When they are shipped to Hawaii to join the Regimental Intelligence section of the 2nd Marines, 2nd Marine Division, he gets himself, Hazen and Cpl. Pete Lewis bottles of whiskey and dates with two Japanese-American women and standoffish reporter Sheila Lincoln. Sheila is disgusted by the behavior of the rowdy Marines, but eventually warms up to Gabaldon after a few drinks.

Going ashore on Saipan, he freezes at first when he comes under fire for the first time, but regains his composure. He uses his Japanese language skills to persuade Japanese soldiers to surrender. In fighting against a banzai charge, Lewis is killed, and later during the bloody campaign for the island, Sgt. Hazen is shot in the leg, becomes pinned down and subsequently killed by a Japanese swordsman. Gabaldon then becomes enraged, stops talking Japanese soldiers into surrendering and starts killing them ruthlessly. After he witnesses two civilians commit suicide rather than surrender, he remembers George and "mama-san" and reverts back to the way he was before. During the final battle, he convinces the Japanese general to order approximately 1000 Japanese soldiers, and 500 civilians to surrender.

Gramercy Pictures bought the screen rights of Gabaldon's story in June 1957. Previously, it had been featured on the TV show This Is Your Life.

The bulk of fiancing for the film - $650,000 - came from American Broadcasting-Paramount Theatres, a theatre chain. They noted the success of To Hell and Back (1955) with Audie Murphy, and sought out another true life World War Two story that might make a good film. They came across the story of Guy Gabaldon and decided to invest in it. Jeffrey Hunter had just been in the popular war film In Love and War.

Phil Karlson called it "one of the most important pictures that I may ever make because it was the true story of the Nisei, what happened in this country. But Allied Artists, even at that point, looked at it as a great war story that you could make for a price. They had no idea what I was doing."