Another charming use of a folksong on film, but only adduced for its movie-history interest - hardly a 'top number' - is Jean Simmons' first-ever appearance on camera at about 15: 1945 film The Way To The Stars, about RAF in WWii. She sings Let Him Go, Let Him Tarry at a base dance for UK & US airmen, who all unaccountably seem to know the chorus & join in from the start... This a year before Gt Expectns in which she made her name as the Young Estella. Just found it on YouTube.