7/7 Ripple Effect

7/7 Ripple Effect is a 57-minute homemade film produced and narrated under the anonymous pseudonym "Muad'Dib", later named by the BBC as conspiracy theorist John Hill. The film disputes the official account of the 7 July 2005 London bombings (also known as 7/7), a terrorist attack on public transport in Central London by four suicide bombers later named as Hasib Hussain, Germaine Lindsay, Shehzad Tanweer, and Mohammad Sidique Khan.

The film was first released on the Internet on 5 November 2007, two years after the attacks. Physical copies were also sent to many of the people connected with the attacks. The film poses numerous questions about the events surrounding the attacks, and alleges alternative theories for who was behind them. The film implicates the Metropolitan Police and Tony Blair, and claims that the true perpetrators of the attacks were MI5 and/or Mossad, who tricked the four men into travelling to London with rucksacks, in order to provide CCTV footage later to be used as evidence in the investigation of the attacks. It alleges that the four bombers were actually murdered in Canary Wharf, and did not die as suicide bombers in the explosions on the three tube trains and one bus where the attacks took place.

An episode of the BBC programme The Conspiracy Files titled "7/7", which first aired on 20 June 2009, debunked many of the claims made in the film as well as other theories surrounding the attacks. The programme also revealed Muad'Dib to be John Hill from Sheffield, tracking him down to an address in Kells in the Republic of Ireland. The Conspiracy Files also questioned Hill's credibility for claiming on his website to be the Messiah, and that George Lucas was told the script of Star Wars telepathically by The Force. It also noted that Hill's chosen pseudonym Muad'Dib is the name of the fictional messiah in Frank Herbert's 1965 science fiction novel Dune.

Hill was later arrested and was facing extradition to the United Kingdom on a charge of perverting the course of justice for sending DVDs of the film to the judge and jury foreman in a trial linked to the attacks.

The film was shown on 9 September 2009 at the 9/11 Film Festival at the Grand Lake Theater in Oakland, California.