This is one of two Japanese B2 posters (that I’m aware of) for the release of the 1977 crime drama Le Gang. The film was an Italian-French co-production and was directed by Jacques Deray, a Frenchman who helmed a number of crime thrillers during his career. French superstar Alain Delon, who collaborated with Deray on a number of similar films, plays the leader of the titular gang of criminals. The story is set in France during the 1940s and the plot, apparently based on true events, is described thusly on IMDb:

In 1945, as World War Two comes to a close, five small time crooks unite to form a gang. After several bold robberies they become notorious as “the front-wheel drive gang”. The police attempt to stop their crime spree with little success, but how long will their luck last?

The other style B2 can be seen on emovieposter.com here.

French acting legend Alain Delon stars in this 1975 film featuring the character of Zorro, originally created by American pulp writer Johnston McCulley in 1919. Zorro has appeared in countless films, TV shows, radio plays, comics and more, and is an enduring favourite across the globe.

This particular film was directed by Italian Duccio Tessari, perhaps most famous as the screenwriter for  ‘A Fistful of Dollars’, which lead to this version being dubbed ‘The Spaghetti Zorro’. Apparently the film was heavily edited for its release outside of France and had around half an hour cut from it, including several explanatory scenes. The uncut DVD is available through Amazon.fr and features English subtitles.

This Japanese poster was for the film’s first release there in 1975. A friend helped me to translate the main text on the poster. At the top it reads:

アラン・ドロン主演50本記念作品 that roughly reads ‘Commemorating Alain Delon’s 50th film’

The other section is:

世界5000万部の超ベストセラーが生んだヒーローに
人気最高ドロンが挑んだ
剣と愛のロマン・スペクタクル巨編

The original book sold 50 million copies
Alain Delon is challenged to act the hero
A film featuring Swordplay and romantic love

Delon was, and still is, a hugely popular actor in Japan.

The bizarrely catchy theme tune from the film can be viewed here.