I remember seeing the Drive In Blue Sky as a teenager in 1975. The back of the screen that faced Kinde Rd. was a beautiful sky blue color. I drove down that road two weeks ago and couldnt locate the spot. I also remember hearing many years ago that the theatre was originally owned by the parents of Francesca James. She played the Kitty/Kelly characters on All My Children in the 70s/80s.
Source: Marlene McIlhargie Schram
The drive-in was open the summer of 1950. I worked in the concession building the summer l954. Gilda Waterworth was the manager of the concessions.