10 Horror Movies That Were Scarier For Making You Think They Were Real

10. Lake Mungo

In the decade-plus since its release, Australian mockumentary Lake Mungo has slowly picked up a wealth of cult fandom in horror enthusiast circles.

The directorial debut of Joel Anderson - and sadly still his only movie to date - depicts a family attempting to come to terms with the drowning death of their daughter, Alice Palmer, and the seemingly lingering presence of her ghost in the family home.

Despite being unabashedly supernatural in nature, the film is constructed so smartly by Anderson, using low-fi video sources for the most part, that the eerie ambiguity of the imagery only makes it more plausible to even the rational mind.

Between the shockingly convincing performances of the cast and spot-on docu-style format, Lake Mungo locks viewers in an anxious vice grip all the way to its gut-wrenching conclusion, ending with a haunting closing image which, while objectively a work of fiction, is sure to linger in the mind long after.

Though Anderson didn't embark on any sort of Blair Witch-esque crusade to market the film as a "real" documentary, the technical and psychological plausibility of the piece make it feel real even in its more outlandish moments - and it's all the more chilling as a result.