Below is a list of all samurai and ninja films I have seen. I have provided brief reviews on many but not all. I will keep adding films as I see them. Which is my favorite samurai film? That would be Hara Kiri (Seppuku). A truly amazing and shocking film.
In Japan, samurai movies are often called "chanbara" or "chambara" which means "sword fighting" movies. These are a sub-category of "jidaigeki" which means something like "period drama". A jidaigeki may refer to a story in a historical period, though not necessarily dealing with a samurai character or swordplay. A couple of examples below are "Red Beard" and "Rikyu".