This is the last film produced by the original Warner Bros. animation studio (established 1929), which closed before the cartoon came out. DePatie-Freleng Enterprises, a new independent animation production company formed by ex-Warner staff, took over the studio shortly after it closed and continued making cartoons featuring Looney Tunes characters, mainly Speedy Gonzales and Daffy Duck, for most of the remainder of the 1960s. Warner's final "Golden Age" cartoons, made by a short-lived revival of the in-house studio, were released in 1969.
The last Looney Tunes/Merrie Melodies shorts in the longest-running classic era from 1929 to 1964.
This was the last one-shot Looney Tunes cartoon until Norman Normal (1968), which was produced by Warner Brothers/Seven Arts Animation, four years later in 1968.
This was the very last cartoon that Friz Freleng had worked on in the classic era. He would also direct the last few shorts in the DePatie-Freleng era from 1964 until 1965 after the original Warner Bros. Cartoons shut down in 1963 before Robert McKimson took over. He later began to direct the Pink Panther cartoons from United Artists (owned by MGM) after Freleng left Warner Bros..