The big gold stripes on Bilko's black dress uniform (worn during the wedding day scenes) are services stripes. Each one equals 3 years of service, he has 9 on each arm, so this indicates he's been in the U.S. Army for at least 27 years.
Pamela Adlon plays 'Rocky' Barbella and 'John Ortiz' plays Luis Clemente. In real-life, Adlon has a daughter named Rocky and Ortiz has a son named Clemente. While working together on Rake (2014), they realized they had given their children the same name as their characters.
Fort Baxter must be located somewhere in California. It is within driving distance of Lake Tahoe and Las Vegas, and at one point a reference is made to return the horse to Knott's Berry Farm, which is located in Southern California.
Bilko's group (Company B) switches the sign on their barracks with the sign on Company A's barracks. One of the names on Company B's sign is Cpt. Hiken. Nat Hiken was the creator of the original The Phil Silvers Show (1955), on which this movie is based.
Star Phil Hartman used to regularly impersonate Paul Ford who was the original Colonel John T. Hall on television Sgt. Bilko skits, and even used the impression during his Saturday Night Live (1975) audition. Despite that, he was deemed too young looking to play Colonel Hall in this cinema movie, Col. Hall was in the end cast with actor-comedian Dan Aykroyd.
Early in the movie they play the same trumpet tune three times in a row. If they were trying to show what was happening at the same time it would be acceptable but the actions included the same actor. Musical or trumpet calls happen once a day to mark specific events and times, they happen once a day.
The film was not the first movie for Steve Martin to have a Sergeant title. Sgt. Bilko was the second cinema movie to have a "Sgt" abbreviation title for star Steve Martin who had previously appeared in Sgt. Pepper's Lonely Hearts Club Band (1978). Martin did not play the title character of Sgt. Pepper in that movie, but instead a doctor, a character called Dr. Maxwell Edison.
Glenne Headly & Steve Martin worked together eight years before the production of Bilko. In "Dirty Rotten Scoundrels" Martin played a confidence man masquerading as an U.S. Army soldier trying to bunco money from Headly's character.
In beginning of the movie the players talk about good meals available on post. On then says you should eat at the 'commisary'. On a movie set the actors eat at the 'commisary'. In the Army you buy groceries at the commisary but eat meals at a 'mess hall' or 'dining facility'