The movie contains scenes that are In black and white that is shown In a different chronological order than the scenes that are in color. In this particular scene, he is tattooing Himself, which is how he remembers Important events.
The Protagonist also takes polaroid's to help him remember.
This scene is when the main character believes he will be finally getting his revenge
This scene is where the protagonist meets another major character, who spends a lot of the story trying to manipulate him for their own personal gain. Manipulation is a big theme in this movie.
This scene shows a photo of the Protagonist that they don’t recall, Implying that the journey to revenge. He might have ended a lot sooner than he remembers.
“Sammy Jenkins” is supposedly another person who has the same condition as the main character. The initial story the protagonist tells about this character turns out to be false, showing the audience that even the main character can't be trusted.
Memento is a mind-bending movie about a man's quest for revenge. However, Due to the protagonist, Leonard's, unique memory loss condition, he has to tattoo his body to remember important details, and his investigation faces an abundance of twists and turns.
The film has two separate timelines, a sequence of scenes in color, and in black and white. The colored ones are shown in reverse, and the black and white ones are shown in chronological order. This is done to put the audience in the protagonist's shoes, because his perception of the events in this movie are disoriented.
Due to the way the story is structured, we don’t see much of the other characters. The two prominent characters aside from Leonard are Teddy and Natalie, who, as the movie goes on, are both revealed to be taking advantage of Leonards' condition for their own personal gain. This shows that manipulation is a big theme in this movie. Even the main character, Leonard, manipulates himself multiple times in the movie. One example of this is the “Sammy Jenkins”
Character and story, which is heavily implied to be a scapegoat for Lenard and what really happened with his wife.
Another theme of the movie is Identity and Revenge. The main character's whole identity is shaped around his pursuit for revenge. We see despite his memory loss, he keeps trying to get his revenge. His condition doesn’t allow him to continue to grow as a person, so in the end he is stuck as the version of himself we see in the beginning.
Manipulation, Misdirection, confusing, disorienting, lying, unorganized, malicious
Memento is a film filled with mystery and misdirection, and deals heavily with themes of Manipulation and revenge.
Final Version below