Sure, Halloween is still a few months away, but it's never too early for a good scare, right?

That's what Guillermo Del Toro must be thinking, anyway, in his new movie 'Don't Be Afraid of the Dark,' about a young girl who becomes terrorized by basement creatures inside her family's 19th-century mansion. Katie Holmes, Guy Pearce and Bailee Madison star.

Of course, if you're looking for more of a laugh, you could always try 'Our Idiot Brother,' in which Paul Rudd plays, well, an idiot brother who causes major headaches among his family. Or there's 'Colombiana,' a female-driven action movie in which a woman ('Avatar's' Zoe Saldana) becomes a professional killer in hopes of tracking down the mobster responsible for her parents' death.

Below, get a rundown of all the biggest movies in theaters this weekend.

'Don't Be Afraid of the Dark'

Directed by: Troy Nixey
Starring: Katie Holmes, Guy Pearce, Bailee Madison
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'Our Idiot Brother'

Directed by: Jesse Peretz
Starring: Paul Rudd, Elizabeth Banks, Zooey Deschanel, Emily Mortimer, Hugh Dancy
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Directed by: Olivier Megaton
Starring: Zoe Saldana, Jordi Mollà, Michael Vartan, Lennie James, Cliff Curtis
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'Conan the Barbarian'

Directed by: Marcus Nispel
Starring: Jason Momoa, Mickey Rourke, Rose McGowan and more
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'Fright Night'

Directed by: Steven Quayle
Starring: Anton Yelchin, Colin Farrell, Toni Collette and more
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'One Day'

Directed by: Lone Scherfig
Starring: Anne Hathaway, Jim Sturgess
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'Spy Kids: All the Time in the World'

Directed by: Robert Rodriguez
Starring: Jessica Alba, Alexa Vega, Jeremy Piven
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'Final Destination 5'

Directed by: Steven Quayle
Starring: Nicholas D'Agosto, Emma Bell and more
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'The Help'

Directed by: Tate Taylor
Starring: Emma Stone, Viola Davis, Octavia Spencer, Bryce Dallas Howard, Allison Janney, Sissy Spacek and more
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'30 Minutes or Less'

Directed by: Ruben Fleischer
Starring: Jesse Eisenberg, Aziz Ansari, Danny McBride
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'Rise of the Planet of the Apes'

Directed by: Rupert Wyatt
Starring: James Franco, Freida Pinto, Brian Cox, Andy Serkis, John Lithgow, Tom Felton
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