What to watch out for
Ethan rides a motorcycle without a helmet; Ethan lies to his fiancee; villains kidnap Ethan's fiancee, tie her up, and hold guns on her; Ethan and IMF crew operate undercover, so they're lying for a living; villain/mole inside the U.S. government agency.
Action violence (explosions, fights, gunfire, missiles, two-chopper shootout, car chases, adrenalin shot to the heart, stabbing, throat-cutting, brain zapped by device through nasal passage); action sequences involve lots of shaky handheld camera; Ethan mourns his student's death (crying and holding body); threat of bioweapon ("Toxin 5"); gizmo called "rabbit's foot" (never explained) threatens world decimation; leaps off tall buildings (falling images); Ethan holds villain as if to drop him from a plane; Ethan zapped by weapon, convulses violently; fight in elevator (Ethan slams multiple men into walls); Ethan bites a villain to escape restraints; Ethan runs into people on the street in Shanghai to reach his destination; some slow-motion crashing and shooting; repeated threats to "kill you."
One agent wears a sexy red formal gown to go "undercover" at a party (shots emphasize men staring at her long legs and visible back/cleavage); Ethan and Julia show affection (kissing, nuzzling) and her siblings discuss the "new family" they'll be starting; Luther and Ethan joke about marriage to each other; sex scene post-marriage in hospital supply closet (brief and suggestive, shirts off, then cut away); Julia in shower (shoulders up), to establish vulnerability before her kidnapping.
A couple uses each of "a-s" and "h--l," plus "d--n," "son of a bi-ch," "t--s," and four s-words.
7-11 store; Slurpee; Kodak camera; Lamborghini.
Drinking, drugs, & smoking:
Drinking (toast to engagement, champagne, martinis); villain smokes cigarettes; Ethan drinks a drug to become unconscious during ride to hideout.