<P> Principal photography began around July 6 , 2013 in London , United Kingdom , under the working title of Full Tilt . Filming took place at Shepperton Studios and Longcross Studios . Later in July , Gunn and the film 's cast flew from London to attend San Diego Comic - Con International , where it was revealed that Pace would play Ronan the Accuser , Gillan would be Nebula , del Toro as The Collector , and that Djimon Hounsou had been cast as Korath . Close was later revealed to play Nova Prime Irani Rael . Also at San Diego Comic - Con , Feige stated that Thanos would be a part of the film as the `` mastermind '' . On August 11 , 2013 , filming began at London 's Millennium Bridge , which was selected as a double for Xandar . In August 2013 , Marvel announced that Bradley Cooper would voice Rocket . On September 3 , 2013 , Gunn said that filming was `` a little over half ( way ) '' complete . Also in September , Vin Diesel stated that he was voicing Groot . However , Marvel did not confirm Diesel 's involvement in the film at the time . On October 12 , 2013 , Gunn announced on social media that filming had completed . </P>
<P> Principal photography began around July 6 , 2013 in London , United Kingdom , under the working title of Full Tilt . Filming took place at Shepperton Studios and Longcross Studios . Later in July , Gunn and the film 's cast flew from London to attend San Diego Comic - Con International , where it was revealed that Pace would play Ronan the Accuser , Gillan would be Nebula , del Toro as The Collector , and that Djimon Hounsou had been cast as Korath . Close was later revealed to play Nova Prime Irani Rael . Also at San Diego Comic - Con , Feige stated that Thanos would be a part of the film as the `` mastermind '' . On August 11 , 2013 , filming began at London 's Millennium Bridge , which was selected as a double for Xandar . In August 2013 , Marvel announced that Bradley Cooper would voice Rocket . On September 3 , 2013 , Gunn said that filming was `` a little over half ( way ) '' complete . Also in September , Vin Diesel stated that he was voicing Groot . However , Marvel did not confirm Diesel 's involvement in the film at the time . On October 12 , 2013 , Gunn announced on social media that filming had completed . </P>
when did they start filming guardians of the galaxy
when did they start filming guardians of the galaxy
July 6 , 2013
July 6 , 2013