The Tunnel is a 2011 Australian found-footage monster horror film directed by Carlo Ledesma (in his feature-length directorial debut) and co-written, co-produced, and co-edited by Julian Harvey and Enzo Tedeschi.

The film stars Bel Deliá, Andy Rodoreda, Steve Davis, Luke Arnold, Goran D. Kleut, and James Caitlin in a documentary-style horror story set in the underground network of abandoned railway tunnels in Sydney, Australia, where a journalist and her crew discover something horrifying lurking within the tunnels.

She and her crew Peter (producer), Steven (camera operator), and Tangles (audio engineer) decide to investigate the story and plan to enter the tunnels themselves.

He decides to take the boom-mike into an adjoining room to reduce the sound levels, leaving Steve with the headphones to listen for distortion in the bell volume.

The crew watches in horror as a tall, anthropomorphic, mutant-like humanoid appears behind him and brutally murders him, slowly twisting his head until his neck breaks.

Natasha lets out a scream, attracting the creature's attention; and the terrified group runs with the monster almost immediately giving chase after them.

They come to a dead-end with a barred opening into a street above them (which Natasha screams up into for help), but when that fails, the group continues searching for an exit.

At one point, the creature attempts to drag Peter from an opening; however, when Steven shines the camera's light on it, the monster immediately retreats.

There, captured on CCTV, Natasha begs for help, and uses a borrowed cell phone to call the emergency services.

[1] Principal photography took place in Sydney, comprising on-location shoots in some of the city's disused tunnels, as well as a public pool and the Royal Australian Navy's World War II air raid shelters at Garden Island.

It was shot non-sequentially in 14 days (including pick-ups) and then edited by the writing-producing team of Enzo Tedeschi and Julian Harvey.

[citation needed] This was side-by-side with simultaneous releases in that territory on DVD, cable, iTunes, and via a custom iPad app.

[6] Richard Kuipers from Variety gave the film a positive review, writing, "Making the most of super-atmospheric locations never previously seen in an Aussie feature, debut helmer Carlo Ledesma is well served by his convincing quartet of thesps.

Special kudos goes to Steve Davis, a real-life cameraman who performs impressively while also filming a sizable portion of the finished product".

[7] James Mudge from Beyond Hollywood.com gave the film a positive review, writing, "Though The Tunnel nevertheless remains above average and better crafted than most of the never-ending stream of found footage horrors, these missteps prevent it from shaking off the shackles of the form or from finding appeal outside dedicated fans.

[8] In 2014, popular horror movie website Bloody Disgusting listed the film as one of the "13 Scariest Mockumentaries Ever Made".