This is one of the few (if any) films which shows what an accomplished dancer Clifton Webb was. During his Broadway career, he was known for his dancing and his singing, as well as his comedy.
Clifton Webb received his third and final Oscar nomination for this film. It was his only nomination for lead actor (his two previous nominations were for supporting actor).
Pilots for a "Mr. Belvedere" television series were shot in 1959 with Hans Conried in the title role, and in 1965 with Victor Buono. The series finally made it to air on the ABC network as Mr. Belvedere (1985).
Included among the American Film Institute's 2000 list of the 500 movies nominated for the Top 100 Funniest American Movies.