In his final scene Buster Keaton breaks out in a big smile, one of the only times in his career the Great Stoneface did so on camera.
"The Screen Guild Theater" broadcast a 30 minute radio adaptation of the movie on December 11, 1944 with Jon Hall, Edward Everett Horton and
Louise Allbritton reprising their film roles.
The film "San Diego I Love You" is listed as the second half of the billing (along with another 1944 film, "The Climax") on the eastern marquee in aerial footage of Grauman's Chinese Theatre shown briefly at about 27 minutes into the film "The Godfather". The aerial footage of Grauman's is used to establish that the action shown in "The Godfather" was moving to Hollywood, California at this point in the movie.