||Some moments of Marty's young mother (due to him going back in time) being attracted to her own future son (without knowing he's her son). She had removed his pants (off screen) while he was unconscious after an accident and openly comes on to him. This is played for humor. She later kisses him while parked together in a car; she describes it: "like I was kissing my brother."
Marty's father is shown as a window peeper in his youth. You see the girl (his future wife) undressing in front of the window while he watches. She is shown in a bra before he falls out of the tree.
A teenage boy attempts to sexually assault a teenage girl in a car. His hand is shown up her skirt but is stopped before it goes any further. She is seen gasping and kicking, but is quickly rescued.
During the school dance, a teenage girl is lifted upside down and there is a close up of her skirt going up, revealing her stockings and suspenders.
||Biff who is a violent, aggressive bully consistently bullies Marty's father, George. He threatens George with violence all the time to make him do things against his will.
Biff also attempts to bully Marty, however as Marty stands up to him there are a few scuffles between them. In one scene Biff and his gang pick on Marty in the café, Marty gets the better of Biff and runs off. Biff then chases Marty in his car, Marty who is now on a skate board just manages to swerve out of the way as Biff tries to ram him and Biff crashes into a manure truck. however apart form Biff's car no one is hurt or injured during this scene.
Terrorists arrive and shoot and kill Doc. They attempt to kill Marty, too but fail to do so. Later, it is revealed that their bus ran into a film booth and they are both presumably killed.
During the lunch hall scene with Lorraine and Biff, Lorraine slaps Biff across the face and tells him to shut his dirty mouth.
Near the end of the movie, George punches Biff hard in the face causing Biff to fall over backwards. It appears that Biff has been knocked out as he is seen lying motionless on the ground but no blood or bruising is seen.
||Many uses of sh-- (including a couple of "holy sh--")
Some uses of bastard and "son of a bitch"
Some uses of "Jesus" as exclamations
||The mother is originally shown as an alcoholic, drinking vodka around the dinner table with her family. It's very brief.
One of the characters had been drinking and driving.
At age 17, Lorraine drinks alcohol and starts to smoke a cigarette, but she is stopped on both occasions by Marty. He takes a sip of the alcohol but then spits it out.
The members of the band playing at the dance are seen smoking outside of the high school and are called "reefer addicts" by another character.
||Characters are in mild to moderate peril throughout. Some risk involved with ledges and things going wrong but no-one is ever harmed or put at serious risk.
Terrorists with automatic weapons drive past shooting at Doc and Marty and then crash into a 1-hour photo kiosk. Doc is shot at many times and it is believed he is killed, no blood. Marty is uninjured.
The scene where Marty starts to fade could be disturbing for young or sensitive Viewers.
Suggested MPAA Rating: PG-13 for language, drinking and smoking, sexual content and some violence.