New posters have gone online for the low-budget horror sequel Paranormal Activity 3 and the indie flick Dirty Girl.  The Paranormal Activity posters continue to be terrible as the studio just takes a shot from the film, puts it on a black background, and slaps on a title.  Oh, but this one has the taglines "Discover how the activity began," (answer: with a brilliant marketing campaign), and "It runs in the family," which only means something if you've seen the previous two films.  But I suppose people know at this point whether they're on board with this franchise or not.

There's also a new poster for Dirty Girl.  The film was picked up by The Weinstein Company at last year's Toronto International Film Festival but has reportedly been re-edited for the theatrical release.  Dirty Girl stars Juno Temple as a girl who runs away with her classmate (Jeremy Dozier) who runs away to Los Angeles to find her biological father.  Hit the jump to check out both posters.  Paranormal Activity opens October 21st.  Dirty Girl opens October 7th.

Poster courtesy of Paramount.

Poster via Yahoo! Movies.

Here's the official synopsis for Dirty Girl:

Danielle, the dirty girl of Norman High School in Norman, Oklahoma, circa 1987. When Danielle's misbehavior gets her banished to a remedial class, she is paired on a parenting project with Clarke, an innocent closet-case with no friends. Danielle is determined to get to California to find the father she's never met, and Clarke is desperate to escape being sent to military school by his homophobic dad. Together, the mismatched misfits light out for California, and discover each other and themselves through a funny and serendipitous friendship.