One Direction, often shortened to 1D, are an English-Irish pop boy band formed in London, England in 2010. The group are composed of Niall Horan, Liam Payne, Harry Styles and Louis Tomlinson; Zayn Malik left the group in March 2015. The group signed with Simon Cowell's record label Syco Records after forming and finishing third in the seventh series of the British televised singing competition The X Factor in 2010.

Propelled to global success by social media, One Direction's five albums, Up All Night (2011), Take Me Home (2012), Midnight Memories (2013), Four (2014), and Made in the A.M. (2015), topped charts in several countries, and generated hit singles including "What Makes You Beautiful" (their first number one on the UK Singles Chart, and the highest debut for a British act on the US Billboard Hot 100 since 1998), "Live While We're Young", "Best Song Ever", "Story of My Life" and "Drag Me Down". After the release of Four, One Direction became the first band in the US Billboard 200 history to have their first four albums debut at number one. Their third album, Midnight Memories, was the best-selling album worldwide of 2013.

Considered teen idols, One Direction were often subject to fan hysteria. They embarked on four world tours, two of which were all-stadium. The band's Where We Are Tour, in support of Midnight Memories, was the highest-grossing concert tour in 2014, the highest-grossing tour by a vocal group in history, and the 15th highest-grossing concert tour of all time.

ONE DIRECTION - This Is Us DVD

One Direction: This Is Us is a 2013 documentary concert film about English-Irish boy band One Direction. It opened in the United Kingdom on 29 August 2013, followed a day later in the United States. The film follows the group on their Take Me Home Tour. It was a commercial success and grossed $68 million worldwide

Billed as an intimate all-access look at life on the road for the global music phenomenon, This Is Us follows the lives of the five members of the boy band, One Direction. One Direction was first put into a group on the X Factor in 2010. This Is Us contains live concert footage from One Direction's Take Me Home Tour at London's O2 Arena, and footage from their lives pre- and post-X Factor appearance, and gives insight into the preparation for their concerts and ultimately what it is like to be One Direction.

This Is Us was first announced by the band while on The Today Show in New York's Rockefeller Plaza on 12 November 2012, followed by confirmation it would be directed by Morgan Spurlock. Spurlock, who unsuccessfully negotiated to direct similar films, Justin Bieber: Never Say Never and Katy Perry: Part of Me, said that he took on the film because of the band's fast-track rise to stardom. The film started filming in Tokyo on 17 January 2013 and was being shot in 3D with 4K resolution RED Epic digital cameras, which Spurlock said gave a cinematic appeal. The film was later given the name One Direction: This Is Us on 19 March 2013, previously being referred to as 1D3D. A majority of the movie was shot in London at the O2 arena in early April. It has been further said that the film is not scripted, with the footage genuine and of them acting "naturally". Styles admitted that the cameras following them around was scary but said that this film gives them the opportunity to show more personality, how they interact, and how they relax when not on stage. Niall Horan remarked that the film crew had access to all areas, even filming them in the toilet.

Scenes shown in trailers include footage of fans telling stories related to the band following a request posted on YouTube, as well as comment from Simon Cowell, who was their mentor on The X Factor and is also a producer of the film.