Way too late for the Beatles. Though they were still nominally together, and they met up at the studio occasionally to cut a studio album, they had long since stopped performing together live as a concert act.
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If you want to see a good concert film from that era, check out
Monterey Pop. Janis Joplin has one of the absolute most impressive, powerful rock or blues live performances I’ve ever seen. I found the clip on Youtube also, but it’s such rotten video and audio quality that I hesitate to suggest watching it there, as you won’t think it’s anything special. But watch it in the movie itself if you can. It’s an amazing display of raw emotion from a vocalist.