The good stuff
The movie's ultimate message is that true love conquers all. But there are also less-positive takeaways influenced by the time in which the movie takes place -- people of color are often portrayed as subservient, and both Ali and her mother say: "I am a stupid woman," as though repeating a truism that they have learned.
Though it's romantic to watch characters fall in love so wholly and stay devoted to each other, some of the choices that the lovers make -- like cheating on a relationship and lying to family members -- don't qualify as role model behavior.
What to watch out for
Noah and Finn are engaged in active duty during World War II. There's a bomb raid that incurs heavy losses. Ali nurses soldiers who have lost limbs. Noah and Ali fight passionately -- so much so that she hits and slaps him. Some poignant deaths.
Steamy passion between the two young lovers. Lots of making out and heavy petting, and characters undress in front of each other (only their shoulders are shown). A fairly graphic lovemaking scene (again, just shoulders visible, plus a brief glimpse of breast from the side).
Words/phrases used include "d--n," "crap," "godd--mit," "son of a bi-ch," and "pain in the a-s."
Not an issue.
Drinking, drugs, & smoking:
A 17-year-old smokes a cigar. Adults drink cocktails, wine, champagne, and beer. Noah goes on a 10-day drinking binge. Characters drink in excess to ease pain or to lessen their inhibitions. Most meals are accompanied by alcohol.