Talking Heads' Stop Making Sense film apparently had some post-production work. IIRC, as I haven't watched it for years, it is fairly obvious that the video itself is an amalgamation of several nights' concerts but the audio also had some 'editing and fine-tuning', I don't know how much. The albums are pretty much separate tracks and not pretending at all to be a continuous live concert.
Still one of the best-ever performances by a band, though.