<P> Filming in Windsor Great Park was underway in February 2015, then later in North Wales from 2 March 2015 . Later on 10 March 2015, Ritchie tweeted a photo and confirmed the first day of shooting . In April 2015, filming took place in Snowdonia, where locations used were Tryfan, Nant Gwynant near Beddgelert and Capel Curig . Early in July filming continued in the Shieldaig, Loch Torridon and Applecross areas of Wester Ross in the Scottish Highlands . One day of filming also took place at The Quiraing on the Isle of Skye . Filming also took place at Warner Bros. Studios, Leavesden . </P> <P> In April 2014, Warner Bros. set the film for a July 22, 2016 release, alongside Lights Out, but it was then moved by Warner Bros. from its original release date of July 22, 2016 to February 17, 2017, alongside Maze Runner: The Death Cure . Warner Bros. moved the release date from February 17, 2017 to March 24, 2017 . The title was changed to King Arthur: Legend of the Sword in July 2016 . In December 2016 the release date was again moved, this time to May 12, 2017, possibly so as not to compete with CHiPs . </P> <P> The trailer was released on 23 July 2016, during the 2016 San Diego Comic - Con and was attached to screenings of Mechanic: Resurrection, Don't Breathe, Shut In, and Fantastic Beasts and Where to Find Them . </P> <P> It was originally planned for an IMAX release on 22 July 2016, as evident in the Comic - Con trailer, but was cancelled due to it being postponed and only received non-IMAX presentations . The first extended TV spot was released on 22 January 2017, and was shown on the 2017 NFC Championship Game on Fox Broadcasting Company between the Atlanta Falcons and the Green Bay Packers and the 2017 AFC Championship Game on CBS between the Pittsburgh Steelers and the New England Patriots . </P>

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