A parents' guide to select new movies:

'I Am Number 4'

Rating: PG-13 for intense sequences of violence and action, and for language

What it's about: Good-looking teens who live among us were the "gifted" on their home planet, and those who destroyed that planet are hunting them here on Earth.

The Kid Attractor Factor: Aliens and ray guns and beasts and Alex Pettyfer and that cute blonde from Glee

Good lessons/bad lessons: Don't take stupid risks with your life; you're needed "for a higher purpose."

Violence: Plenty of fist fights and dagger duels, but not much blood

Language: Maybe six swear words, but not the big ones

Sex: Hot teens making goo-goo eyes at one another

Drugs and alcohol: None

Parents' advisory: This action-adventure is sort of a teen sci-fi Twilight without the threat of sex; suitable for 11 and older.

'Justin Bieber: Never Say Never'

Rating: G

What it's about: Home movies, concert footage and backstage moments show us what it's like to be Justin Bieber.

The Kid Attractor Factor: Justin Bieber in all his mop-topped glory

Good lessons/bad lessons: "Follow your dreams," and being a teen idol isn't all fun and concerts

Violence: Slap fights, all in good clean fun

Language: Disney clean

Sex: Justin topless, tossing his hair. As close as this movie gets to "sex."

Drugs and alcohol: Not a hint

Parents' advisory: Suitable for all ages; intended for girls 10-16, who are the only ones who can hear those high-pitched screams.

Roger Moore, The Orlando Sentinel