Three Cheers for the Girls (1943)

This compilation of musical numbers from Warner Brothers movies has a lot to recommend it, including Busby Berkley numbers, linking numbers by Jean Negulesco near the end of his musical shorts period, and music by Warren & Dubin.

It's a fairly cheap way of recycling footage, and useful as publicity for reissues of Warner's 1930s musicals; by now, Busby Berkley was at MGM, but the prosperity of people who weren't overseas fighting the war meant they had money spend on cheap luxuries, and a night at the movies counted as one. Also, film production was restricted, which meant that older, well-regarded movies were playing at a lot theaters.