Themes include communication, courage, and self-control. The movie focuses on how an at-odds mother and daughter can mend their relationship and learn from each other. A mother is fierce when it comes to defending her daughter, and vice versa. The way that Merida and Elinor work together is a beautiful tribute to the bond between mother and child. The movie also teaches the idea that "legends are lessons" -- stories that can teach us all about follies like pride, greed, and selfishness.
There are several intense/scary scenes in Brave revolving around a giant, frightening bear; some of them may be too much for younger or more sensitive kids. The bear attacks King Fergus in the opening sequence (viewers learn that it tore off his leg; he has a wooden stump), and later it rages against Merida, Elinor, and the entire congregation of Scottish clansmen. Possible spoiler alert: Elinor's transformation into a bear is mostly funny, but in one scene that could upset younger kids, she becomes more bear than mother and growls menacingly at Merida. Young kids might also be frightened when the men (including Fergus) take arms against bear-Elinor and are set on killing her. The climactic battle between the bears and the clan gets very tense, especially when it looks like Merida or Elinor will be hurt. Some of the scenes with the witch may also be scary for kids -- she's mostly harmless, but her hut is spooky, and she comes off as creepy herself. The will o' the wisps are eerie and a bit ominous. The Scotsmen fight constantly, using both their bodies (hands, fists, teeth, feet) and weapons (swords, arrows, etc.) on their opponents.
Fergus and Elinor are an affectionate married couple; he smacks her on the bum, and, later, when she's naked under a sheet (nothing is seen below her neck), he stares at her until she reminds him that others are around, too. The men are naked under their kilts, and in a couple of scenes, animated naked rear ends (both of adult men and young boys) are briefly glimpsed. A housemaid has ample cleavage.
Although there are no product placements in the actual film, Brave already has much merchandise available: dolls, costumes, apps, storybooks, a soundtrack, video games, apparel, and more.
Drinking, Drugs & Smoking
The Scotsmen gather in the castle for a feast before it devolves into a brawl, and there are steins of drink, presumably some sort of mead or ale, but it's not referenced, and no one is represented as drunk.