What year was the 1968 concert film, "The Rolling Stones Rock and Roll Circus" commercially released?

"The Rolling Stones Rock and Roll Circus" was a concert film hosted by and featuring the Rolling Stones.

The project was conceived by Mick Jagger as a way to promote the Stones' album "Beggars Banquet" alongside conventional press and concert appearances.

Michael Lindsay-Hogg who had directed promos for two Rolling Stones songs in 1968, proposed the idea of a "rock and roll circus" to Jagger.

The Rolling Stones and several guest artists including Jethro Tull, The Who and John Lennon and his fiancee Yoko Ono, among others, performed in a replica of a seedy big top on a British sound stage, the Intertel (V.T.R. Services) Studio, Wycombe Road, Wembley, in front of an invited audience. The performances began at around 2 pm on December 11, 1968, but took longer than planned, and the final performances took place at almost 5 o'clock on the morning of the 12th. It was only due to Jagger's sheer enthusiasm and stamina, and Lindsay-Hogg's patience and encouragement, that they finished.

The film was meant to be aired on the BBC, Jagger was reportedly so disappointed with his and the band's performance that he cancelled the airing of the film contending that they felt their performance was substandard. They were clearly exhausted after 15 hours of filming (and some indulgence in drugs).

The show was not released commercially until October 1996. It was Brian Jones' last appearance with the Rolling Stones; he drowned some seven months later while the film was being edited.