Both films are about historical wars inspired by real events and old tales. They involve two great heroes – who by cunning and courage – saves their nation from hostile foreign forces. Willing to sacrifice themselves, they're selflessly fighting for what's important; to achieve lasting peace and to protect their country, and countrymen. The movie Mulan, though, have elements of romance and a stronger fokus on friendship.
Both are about a religious cult that recruits people and their families. The main male leads tries to save the female main character from her family and the cult that holds them bonded by manipulation, cruelty and wile. Both Save Me and Love Exposure have a darker theme, the latter is a Japanese long film though, with romance involved.