The marketing for 'Paranormal Activity 3' is officially in full gear. Earlier this week, three creepy clips from the film showed up online -- keeping in line with the film's late '80s era, studios mailed VHS tapes of the clips along with VCRs to certain horror sites -- and now the full trailer has unfurled. Watch ahead.

This clip shows a bit more action than the previous two film's trailers did, which hopefully translates to more awesomely homemade creepiness. Kids jumping and screaming! Houses burning! Psychologists getting their head slammed on a table! 'Paranormal Activity 3' arrives in theaters at the end of October.

[via Deadline]