Since this thread already is about Norwegian royals on film, I thought I might add a link to a two-part NRK (Norwegian National Broadcasting) documentary about Queen Maud's 44 photo albums and below Crown Princess Märtha's WW2 wartime exile in the US:https://tv.nrk.no/serie/kongelige-fotografer/MDDP13001115/sesong-1/episode-1
I hope they can be viewed from abroad too and not just from Norway. I watched the part about Queen Maud and it is a kind of treasure hunt with a palace conservator, a photo archivist and royal biographer Tor Bomann-Larsen hunting for the furniture and sites in Queen Maud's photos, in Britain, Denmark and Norway. Most of the facts (presented in Norwegian) are well-known and the best photos have already been published, but it's interesting to see them in context and a little behind the scenes at the sites they were taken.
I didn't know that the sunken garden in the park of Bygdø Royal Manor in Oslo, laid out by Queen Maud in 1919, was dedicated to victims of WW1. Probably first and foremost Norwegian ones (Norway was neutral, but many sailors lost their lives, being torpedoed), but who knows, Queen Maud may have thought about her murdered Russian cousins, some of whom came to visit her at Bygdø in the golden summers before 1914, as collateral damage of WW1 too. Anyway it's shown from minute 39:00 and onwards.