Reel SF is a fascinating site that makes then and now comparisons of San Francisco film locations from classic films. It is the work of CitySleuth, a movie buff who has been doggedly hunting down film locations and photographing them for 12 years. CitySleuth goes about their work with extreme thoroughness—they have found and photographed every location featured in the more than 20 films covered by the site so far, even interior shots and window views.
Days of Wine and Roses (1962)
Sudden Fear (1952)