Both movies are about adoptive parents with an adopted child that are contacted by their biological/ birth mothers because they want to have their child back.
By the same director, both films thematise dark and twisting journey through the history of warfare in Japan. They even share stylistic aspects.
Both films about spies caught in complicated political circumstances between South and North Korea.
both films are about Japanese fear and hatred of foreigners invading Japan. In "Kamikaze Taxi" the xenophobic behaviour is directed towards nikkei (the male lead is Japanese-Peruvian). Both are about yakuza and power struggle as well.
Both treat the theme of Cannibalism, a rather taboo subject. Anthony Chau-Sang Wong won the Best Actor Award in Hong Kong Film Awards (1994) for the character,Wong Chi Hang, the Main Male Lead in "The untold story".
Both films are about main leads that are outlaws within the yakuza organisation who join forces to take down the crime syndicate.
Both films are about main leads represented as a killing machine bent on revenge, as lone swords wielders against a horde of enemies.
Both films are about the guilt and atonement between victims and perpetrators. Both show mixed with the dangerous attraction / repulsion for those who caused pain and suffering.
Both are about the self-destruction of the yakuza world. "Graveyard of honour" is a remake of Kinji Fukasaku's 1975 film of the same name, which is based on the life of a real-life Yakuza member.
Both are about betrayal and revenge in the yakuza world. "Ambition without honour" is a hommage to the film "Battles Without Honor and Humanity" directed by Kinji Fukasaku in the first half of the 70's.
Like in " Tokyo Story", "Brothers and Sisters of the Toda Family" concerns itself with the failure of filial piety in an increasingly corrupt society.
After a badly done assignment, a hitman finds himself in conflict with his organisation, and one mysterious and dangerous fellow-hitman in particular.
