St. Ausgustine, Florida? What scene(s)?????

IMDB says that part of the movie was filmed in St. Augustine, Florida. So do sites on movies filmed in Florida. (The Last Picture Show- St. Augustine). Does anyone know what scene or scenes would have been filmed there? Everything im the movie looks like Archer City (or Olney, Texas) unless maybe some random indoor scene(s)? I understand that the swimming pool scene was filmed in Wichita Falls. Does anyone know?