What are the best documentaries?

Making a Murderer is a documentary that explores the story of Steven Avery, who served 18 years in prison due to a wrongful accusation. This series is written and directed by Laura Ricciardi and Moira Demos.

Cave of Forgotten Dreams is the approximation by German director Werner Herzog to the mistery of the ancient art of cave paintings. Herzog explores the cave of Chauvet in France, where there are some of the eldest paintings of Humanity.

Biggie and Tupac were two of the most famous rappers from the 90s when the tensions of the two hip-hop scenes, East Coast and West Coast, were on the rise. Both rappers were murdered in 1997 and this documentary investigates the reasons for the death of the singers with surprising information.

City of Ghosts follows "Raqqa is Being Slaughtered Silently" or RBSS-- a Syrian activist group of journalists. Academy Award-winning documentarist Matthew Heineman and RBSS uncover human rights abuses being brought upon Syria by the Islamic State based in Raqqa. 

This obsessive movie is a documentary that explores the fan theories that explain one of the most surprising and metaphoric horror movie of all time, The Shining. This documentary explores, almost frame by frame, every visual aspect, every metaphor, every context of Stanley Kubrick's masterwork.

Hell On Earth: The Fall of Syria and the Rise of ISIS is a documentary that pulls from nearly 1,000 hours of visceral footage. The film chronicles Syria's descent into the unbridled chaos that allowed the rise of ISIS.

Life Itself is a biographical documentary about Roger Ebert, winner of a Pulitzer and one of the few critics that could make a movie fail or be a success by his criticism and reviews. Life Itself focus on the alcoholism and private life of Ebert and his rivalry with Gene Siskel.

Pumping Iron is a docudrama about the 1975 bodybuilding championships of Mr Olympia and Mr Universe. The documentary focuses on Arnold Schwarzenegger, Lou Ferrigno and Franco Columbu, actual legends of bodybuilding that later became actors and start a career in Hollywood.

The ISIS Propaganda Machine is a documentary that analyses how today’s media have allowed this barbaric group to continue sending its callous message around the world.

The Islamic State (Full Length) explains how a hardline Sunni jihadist group that formerly had ties to al Qaeda, has risen to the top.

Finders Keepers is a documentary film directed by Bryan Carberry and Clay Tweel released in 2015 which details about John Wood's attempt to reclaim his mummified leg from Shannon Whisnant who found it in a grill he purchased. 

American Movie is a documentary film released in 1999 directed by Chris Smith which shows the making of the independent horror film Coven from 1996–97 directed by filmmaker Mark Borchardt.

Man on a Wire is a biographical documentary film released in 2008 directed by James Marsh which is about Philippe Petit's high-wire walk between the Twin Towers of New York's World Trade Center in 1974 based on his book To Reach the Clouds.

The Fear of 13 is a British documentary film released in 2015 directed by David Sington which is about the story of Nick Yarris who was released from prison after he spent 21 years on the Death Row following his conviction of murder. 

The Startup Kids (2012) is a documentary film directed by Vala Halldorsdottir and Sesselja Vilhjalmsdottir. It includes interviews with young web entrepreneurs, such as the founders of Dropbox, Vimeo, Soundcloud, Grove and Kiip, among others.

Grizzly Man is an American documentary film released in 2005 directed by German Werner Herzog which is about grizzly bear activists Timothy Treadwell and Amie Huguenard killed while living among grizzlies in Alaska. 

Planet Earth is an Emmy Award-winning documentary series commissioned by the BBC which was five years in the making and the first to be filmed in high definition. It has a six-part sequel titled Planet Earth II.

The Jinx is a six-part documentary released in 2015 directed by Andrew Jarecki which focuses on real estate heir Robert Durst, who was the main suspect in the disappearance of three people, including his wife. 

Something Ventured (2011) is a documentary film directed by Daniel Geller and Dayna Goldfine. It investigates the emergence of venture capitalism in USA from the middle of the 20th century and the birth of successful tech companies like Apple, Cisco, Intel or Atari.

Startup.com (2011) is a documentary film directed by Chris Hegedus and Jehane Noujaim. It follows the birth and failure of govWorks.com, a new media company created by two friends in their late twenties with one goal: get rich by developing a dot-com company.

Weed is an award-winning CNN documentary by chief medical correspondent Dr. Sanjay Gupta who goes trough the scientific reasoning around the use of cannabis for medical purpose. It's a must-see documentary full of scientific research and real experiences.

The Keepers is a Netflix original documentary web series directed by Ryan White released in 2017. It consists of seven-webisodes exploring the disappearance and death of Sister Cathy Cesnik in 1969.