1992 film by Ching Siu-tung

2011 Chinese-Hong Kong martial arts film directed by Benny Chan

2021 film directed by Benny Chan

In the fourth installment of the fighting franchise, Boyka is shooting for the big leagues when an accidental death in the ring makes him question everything he stands for. When he finds out the wife of the man he accidentally killed is in trouble, Boyka offers to fight in a series of impossible battles to free her from a life of servitude.

Russian inmate Boyka, now severely hobbled by the knee injury suffered at the end of Undisputed 2. No longer the feared prison fighter he was, he has declined so far that he is now good only for cleaning toilets. But when a new prison fight tournament begins - an international affair, matching the best fighters from prisons around the globe, enticing them with the promise of freedom for the winner - Boyka must reclaim his dignity and fight for his position in the tournament.

Heavyweight Champ George "Iceman" Chambers is sent to a Russian jail on trumped-up drug charges. In order to win his freedom he must fight against the jailhouse fighting champ Uri Boyka in a battle to the death. This time he is not fighting for a title, he is fighting for his life!

Aging wrestler Randy "The Ram" Robinson is long past his prime but still ready and rarin' to go on the pro-wrestling circuit. After a particularly brutal beating, however, Randy hangs up his tights, pursues a serious relationship with a long-in-the-tooth stripper, and tries to reconnect with his estranged daughter. But he can't resist the lure of the ring and readies himself for a comeback.

Fai, once a world champion in boxing, escapes to Macau from the loan sharks and unexpectedly encounters Qi, a young chap who is determined to win a boxing match. Fai becomes Qi's mentor and rediscovers his passion to fight not only in the ring but for his life and the cares.

Monroe Hutchens is the heavyweight champion of Sweetwater, a maximum security prison. He was convicted to a life sentence due to a passionate crime. Iceman Chambers is the heavyweight champion, who lost his title due to a rape conviction to ten years in Sweetwater. When these two giants collide in the same prison, they fight against each other disputing who is the real champion.

Supervillains Harley Quinn, Bloodsport, Peacemaker, and a collection of nutty cons at Belle Reve prison join the super-secret, super-shady Task Force X as they are dropped off at the remote, enemy-infused island of Corto Maltese.

1976 Japanese film directed by Junya Satō

2021 film directed by Justin Lin

1986 film by Sammo Hung

A Taoist priest is ordered to find a Cherry Boy to appease his temple's ancestors. The boy in question is a young man who lives with his grandmother, trying to protect a sacred writ from a bright red, snarling bad guy. And let's just say insanity follows!

The Progenitor, Cheng Yang, Cheng Jen and his brother, Chung Yin-Chiu tried all means to acquaint with the “Yin Yang Separate Body Style”, which was the most powerful Taoism Kung-fu of Yin Yang Tang. One day, Student, Ko Sheng practiced the style secretly. Since his basic Kung-fu training was not well-established, he made his soul separated from the body. At the most critical moment, he was saved by Yin-Chiu. The leader of Tien Wu Men, Master Fu Luen wanted to rule over the community by force, bitterly practiced the “Tzu Yin Wicked Style” kung fu. He controlled Kuan Shih-Chung by using poison and ordered him to get the urea of children and women's placenta for him to practice...

青城山天师教掌门师弟醉道人（袁祥仁饰）武艺高强，法术精通被派去看守天牢，但因醉酒贪杯、职责疏忽，致使被囚禁的重犯邪胜正（袁信义饰）逃出天师教，危害人间。邪胜正为练习毒功，排除师弟和徒弟寻找至阴之时出生的童男童女，练就九阴童子功，意图向天师教报复。民间玄门世家单传游白云（袁日初饰）刚巧为至阴童子，在机缘巧合下结实了醉道人，一同对抗邪胜正的阴谋.....

Two elderly Taoist priests, Chi Men and Dun Jai, who learn their magic from the same teacher always quarrel with each other. They provide mirth and expert kung fu tuition to young man who is mistakenly presumed to be the crown prince of the Imperial Court, missing since childhood. The emperor dispatches an eunuch with the magic powers to apprehend the young man. But he must first deal with Chi Men and Dun Jia who are the young man's protector.

A group of desperate Chinese criminals hope to make a quick, effortless score in Hong Kong. Things go afoul, and the gang must hide out until the heat dies down, besmirched with the blood of an undercover cop.

In a desolate war zone where screams of the innocent echo, on the very line between disaster and valor, 7 Maroon Berets will dance with death.

While on a prison furlough, a lowly criminal evades his guards and returns to his old stomping ground to take revenge on the people who turned him into a cold blooded killer.