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Some early Hollywood Reporter production charts credit Lester White with the photography, although the film and all reviews only credit Charles Lawton, Jr. The extent of Lawton's participation in the released film has not been determined. According to a Motion Picture Daily news item, Edwin L. Marin took over the direction of the picture from William Thiele just prior to the start of production. This was the only film in which popular M-G-M juvenile stars Freddy Bartholomew and Judy Garland appeared together. The song "Zing Went the Strings of My Heart" became one of Garland's "signature" tunes, a standard of her performances for many years after the film. According to modern sources, M-G-M was cast in this film when filming of The Wizard of Oz was delayed from July to October 1938. Modern sources also note that Noel Langley worked on the script, although he was uncredited.