The La Rue as seen in the film was a famous restaurant at 8361 Sunset Blvd. on the Sunset Strip.
The television in Nina's house is a 1949 Philco model 49-1040. The suggested retail price for the set was around $375, which equates to nearly $5,000 in 2024. Nina is well off or well taken care of. [Nina works for Vince, so she is "well taken care of".]
In one scene, John Payne hitches a ride in a mortuary van from a place called "Green Acres". It's coincidental that the movie's cast includes Frank Cady and Percy Helton, both of whom appeared on the TV series Green Acres (1965).
It is mentioned Eddie was the recipient of the Silver Star. This is the third highest combat award behind the Distinguished Service Cross (or Navy Cross) and the Medal of Honor.
The Letterman Army Hospital, where Dr. Kemble works, was established around 1898 and decommissioned in 1994. In World War II, it was an important hospital for treating sick and wounded soldiers from the Pacific Theater. In 1945 alone, the Hospital treated more than 73,000 patients. The building was demolished in 2002, and Lucasfilm Ltd. LLC now operates the Letterman Digital Arts Center on the site.