Fay Holden, who plays Mickey Rooney's mother in this film, played Mrs. Hardy, the mother of Andy (Micky Rooney) in 15 of the 16 Andy Hardy movies.
Buck, the dog who portrays "Blotto", is the same dog who co-starred with Clark Gable in Call of the Wild (1935).
The "20 Gs" (short for "20 Grand" or $20,000) that the Piermont wedding is said to have cost would be equivalent to about $448,000 in 2024.
Three actors in this movie were also in "The Thin Man" series with William Powell and Myrna Loy: Maureen O'Sullivan was in The Thin Man (1934), Jessie Ralph was in After the Thin Man (1936), and Edward Brophy was in both The Thin Man (1934) and The Thin Man Goes Home (1944).
In Chick and Ted's room there's photos of Wallace Beery, Clark Gable, Myrna Loy, Franchot Tone, etc. - all MGM stars.