the home-video era came an opportunity to release Yellow Submarine on VHS and LaserDisc. However, it was held up by United Artists for some years over music-rights issues. Coinciding with the CD release of the soundtrack album, MGM/UA Home Video issued the film on home video on 28 August 1987. To the disappointment of fans in the UK, the film was presented in its US theatrical version, thereby omitting the "Hey Bulldog" scene. The video was discontinued around 1990, and for many years copies of the original VHS issue were considered collectables. On 14 September 1999, then-rights holders Metro-Goldwyn-Mayer and Apple reissued the film for the first time on DVD and VHS using restoration techniques of the time. The sound was remixed to Dolby 5.1, and the film was re-edited to its European theatrical version, with the "Hey Bulldog" number restored. This version (released by MGM Home Entertainment, which was available exclusively through Warner Home Video worldwide) went out of print once the rights reverted to Apple Corps. Restoration On 20 March 2012, Apple Corps announced that the film had been restored by hand for DVD and Blu-ray release on 28 May 2012 (29 May in North America), later delayed one week to 4 June 2012 (5 June in North America). The company stated: "The film's soundtrack album will be reissued on CD on the same date. The film has been restored in 4K digital resolution for the first time – all done by hand, frame by frame." The delicate restoration was supervised by Paul Rutan Jr and his team, which included Chris Dusendschon, Rayan Raghuram and Randy Walker. No automated software was used to clean up the film's repaired and digitised photo-chemical elements. The work was done by hand, a single frame at a time, by 40 to 60 trained digital artists, over several months. In addition to the DVD and Blu-ray re-release, the restored version also received a limited theatrical run in May 2012. For the 50th anniversary of the film, the soundtrack and score were remixed in 5.1 stereo surround sound at Abbey Road Studios by mix engineer Peter Cobbin. Soundtrack On 14 September 1999, United Artists and Apple Records digitally remixed the audio of the film for a highly successful theatrical and home video re-release. Though the visuals were not digitally restored, a new transfer was done after cleaning the original film negative and rejuvenating the