It’s fortunate if you have the ability to go to London's National Gallery directly; otherwise, this film serves as an excellent substitute. As is typical with Frederick Wiseman’s documentaries, viewers absorb information about the subject organically, rather than through planned interviews. Instead, we experience things much like a regular museum attendee would—by listening to the guides, who are given ample time by Wiseman so that he can more accurately portray what it's truly like to be there. Furthermore, consistent with his usual approach, Wiseman provides insight into how the organization functions internally. In this instance, the behind-the-scenes look extends beyond just the administrative aspects; we also get to see workshops where artists perform essential work in retouching, restoring, and preserving artworks. It's worth noting that the National Gallery is an art gallery—a place specifically designed for displaying visual artwork—but this institution prioritizes combining different forms of artistic expression, so you might encounter events such as piano performances or ballet within the museum spaces.

Source on TMDB