Parents Guide for
Taxi Driver (1976)

The prostitute makes several sexual advances to him, which Travis overtly refuses and is disgusted by.

as said above, a main character is an underage teenager prostitute

He has a similarly nonsexual fascination with pornography and frequents the theaters. While there aren't many explicit images from the films, there are lewd sounds.

Travis shoots a robber in the face, blood shown in the aftermath.

Travis shoots a man in the gut, blood spraying on a window behind him. Travis blows a man's hand off, fingers and chunks of flesh are seen being blown away along with gouts of blood. Travis is shot in the neck and we see blood pour out. Travis shoots another man twice more (at a distance). Travis shoots the handless man once more in the arm. The shot man cries out in anger and pain, uttering bouts of death threats and profanity. Travis is shot in the shoulder. Travis shoots a man numerous times in the face (we see bullet holes in his face), the man then making erratic death movements until he collapses on the floor. Wounded man tries to beat Travis. Travis wrestles with a wounded man until he produces a knife and stabs him through his remaining hand. he then executes the man and his blood and brains explode onto the wall. Travis tries to shoot himself only to find that there aren't any bullets left in any of his guns. Travis sits on a couch covered in gore, pretending to shoot himself with bloodied fingers. The camera pans around the scene of the massacre and we see and bloody wall, bloody footprints, another wall that is particularly gore-covered, and we see a few gory corpses.

Frequent uses of 'f***', and also a use of 'c***' Once/Twice racist language other standard R-Rated language

Travis is offered a laundry list of drugs from a traveling gun salesman. He refuses the drugs, saying he's not into that stuff, but purchases 4 guns and a holster.

Travis is fascinated by the underbelly of 1970's New York, including but not limited to prostitutes, drug dealers and drug addicts.

several characters drink and smoke, and also use drugs

This film is not for children. there are some very adult themes in this film (deterioration of the human mind, the link between sex and violence, male pattern aggression, urban alienation and open sexuality)

Travis plans to kill a presidential candidate. (he does not)

Travis kills four men through the course of the film, each time very graphically. (onscreen)

the fact that a main character is a teenage prostitute may also offend some viewers