
Seven Samurai (Japanese: 七人の侍, Hepburn: Shichinin no Samurai) is a 1954 Japanese epic samurai action film directed by Akira Kurosawa from a screenplay co-written with Shinobu Hashimoto and Hideo Oguni. Taking place in 1586 in the Sengoku period of Japanese history, it follows the story of a village of desperate farmers who seek to hire samurai to combat bandits who will return after the harvest to steal their crops. At the time, the film was the most expensive film made in Japan. It took a year to shoot and faced many difficulties. It was the second-highest-grossing domestic film in Japan in 1954. Many reviews compared the film to the Western film genre. Seven Samurai is regarded as one of the greatest and most influential films in cinema history. Since its release, it has consistently ranked highly in critics' lists of greatest films, such as the BFI's Sight & Sound and Rotten Tomatoes polls. It was also voted the greatest foreign-language film of all time in the BBC's 2018 international critics' poll. It is regarded as one of the most "remade, reworked, and referenced" films in cinema.

So this is specifically for sorting movies by period pieces, using that as a broad term just for any film not set in the modern day. This won't apply to movies that came out in the year it was set in, for instance don't put a movie that came out in the 90s that was set in the 90s. If a movie is set across multiple decades, you can just put them in each or whichever is prominent, that’s what voting is for it’s a matter of opinion.
