Myrna Loy was actually a fully trained professional dancer, having studied with Ted Shawn (husband of modern dancer Ruth St. Denis and co-leader with her of the Denishawn company), but "The Truth About Youth" and Warners' all-star musical "The Show of Shows" were among the few movies in which she actually got to dance.
In September 1928, Warner Bros. Pictures purchased a majority interestin First National Pictures and from that point on, all "First National" productions were actually made under Warner Bros. control, even though the two companies continued to retain separate identities until the mid-1930's, after which time "A Warner Bros.-First National Picture" was often used. The reason was that the Warners-First National merger had been questioned by the federal government on antitrust grounds, and having the two companies operate at least nominally separately was a federal requirement for allowing the merger (which Warners had done primarily to get their hands on First National's theatre chain) to go through.
In the late 1920's and early 1930's, several films, instead of crediting their directors as such, listed the director's name as "A blank Production" on the same card as the main title credit. This film is one such; though the title card lists it as "A 'William Seiter' Production" Seiter's actual function was director, not producer.
The play opened on Broadway in New York City, New York, USA on 5 February 1900 and had 41 performances. There were 2 Broadway revivals, the last in 1906.
Vitaphone production reels #4353-4360 and #4250 (trailer)