Source: thestirWhat's better than turning off the lights; lighting some candles; and watching a scary movie during Halloween? Not much. Except turning off the lights; lighting some candles; and watching a non-scary movie that has actual ghosts in it!Over the years, there have been a few films that have featured some strange and unintentional "guests" in them -- or things that are just plain weird. Apparitions, voices, signs. They're creepy! And they're the perfect movies to watch during Halloween. Forget The Shining, these flicks are the real deal.Three Men and a BabyThe classic. But also, arguably, the most terrifying one of all. You know what I'm talking about, right? The scene where there's the supposed "ghost" of a boy who died in the background of a scene? Sure, there are probably plenty of explanations why this image appears, but it's super creepy nonetheless.The Wizard of OzAnother popular one. In one scene of The Wizard Oz, someone can be spotted swinging back and forth from a rope -- as in a noose -- in the background. The urban legend behind it is that it's a munchkin who committed suicide.AladdinThere's no ghost in this movie per se, but there's a seriously weird "message" that can be heard. If you listen closely, at one point in the film, you can hear the phrase "Good teenagers, take off your clothes" in the background. Scary? Eh, not so much. But definitely odd.The Poltergeist Deaths Perhaps it's a coincidence, but after the making of each Poltergeist film, supposedly a child member of the cast died. People have claimed that the untimely deaths have something to do with the films being "cursed."The Ring If you look in the background here, you can see a shadow moving around. Ghost or boom operator? You be the judge.Check out the gallery to see if you can spot these 'ghosts'.