Sweet Toronto is a documentary by D.A. Pennebaker of the Toronto Rock and Roll Revival, a one-day festival held September 13, 1969 at Varsity Stadium on the campus of the University of Toronto and attended by some 20,000 persons. The event was produced by John Brower and Ken Walker. John Lennon played as part of the Plastic Ono Band, whose members also included Yoko Ono, Klaus Voorman, Alan White, and Eric Clapton. The video also features a selection of other acts: Jerry Lee Lewis, Little Richard, and Bo Diddley. The actual concert lasted twelve hours, but Pennebaker's documentary focuses mainly on the final hours of the concert. At the time of the performance Yoko Ono's popularity was sufficiently low that the audience booed and left the Plastic Ono Band performance. There was a similar response from film reviewers at the time. The performances "and this film have grown in interest and watchability since that time, particularly given the rarity of such thorough documentation of these key performers' work in concert."