Jaap Buitendijk/Summit Entertainment

Hell hath no fury like a woman scorned, according to the Bard of Avon, and young adults are all a clamor over fantasy books and films telling such stories, including the Twilight series, Divergent (due in theaters March 21) and the newly released The Hunger Games: Catching Fire. Merging alienation, forbidden love, impossible odds and a touch of the supernatural, these books-to-movies are all the rage. But how to tell the three apart?

MOVIE: Divergent
AUTHOR: Veronica Roth penned the trilogy.
COPIES SOLD: 3 million
BOX OFFICE: Hits theaters in March
STORYLINE: In a post-apocalyptic world, teens are divided into factions based on their primariy personality traits, though a sadistic conspiracy roils underfoot.
STRONG-FEMALE LEAD:  Tris Prior, good at facing her fears and balancing aggression and compassion
STAR-CROSSED LOVERS: Tris and Four, a handsome young stud, who trains her as a Dauntless and ultimately falls head over heels in love with her

MOVIE: Twilight Series
AUTHOR: Stephenie Meyers penned the four-book series.
COPIES SOLD: 116 million
BOX OFFICE: $3.3 billion over five films
STORYLINE: A high-school girl falls for a vampire in a peaceful village in the Northwest.
STRONG-FEMALE LEAD:  Bella, a fetching loner with irresistible blood and a curious mind
STAR-CROSSED LOVERS: Bella and Edward, a handsome vampire, get together over several books and films, eventually bringing into the world a half-vampire/half-human baby.

MOVIE: The Hunger Games
AUTHOR: Suzanne Collins penned the trilogy
COPIES SOLD: 26 million
BOX OFFICE: $691 million for part one. Part two, Catching Fire, hit theaters last month.
STORYLINE: In Panem, a war-ravaged North America plagued by famine, kids are forced to kill each other on a televised game show that entertains the Capitol.
STRONG-FEMALE LEAD: Katniss Everdeen is particularly adept witha  bow and arrow and is a grand strategist and a determined survivor.
STAR-CROSSED LOVERS: Katniss and Peeta, the baker's son, must square off and even fall in love to win the bloody contest.