A few nice movie theater images I found:
Campus Drive-In Theater, closer view with neon, El Cajon Boulevard, San Diego, California (LOC)
Image by The Library of Congress
Margolies, John,, photographer.
Campus Drive-In Theater, closer view with neon, El Cajon Boulevard, San Diego, California
1 photograph : color transparency ; 35 mm (slide format).
Title, date and keywords based on information provided by the photographer.
Margolies categories: Mural and decorated screens; Drive-in movie theaters & signs.
Purchase; John Margolies 2007 (DLC/PP-2007:125).
Credit line: John Margolies Roadside America photograph archive (1972-2008), Library of Congress, Prints and Photographs Division.
Please use digital image: original slide is kept in cold storage for preservation.
Forms part of: John Margolies Roadside America photograph archive (1972-2008).
United States–California–San Diego.
Rights Info: No known restrictions on publication. For more information, see "John Margolies Roadside America Photograph Archive – Rights and Restrictions Information" www.loc.gov/rr/print/res/723_marg.html
Repository: Library of Congress, Prints and Photographs Division, Washington, D.C. 20540 USA, hdl.loc.gov/loc.pnp/pp.print
Part Of: Margolies, John John Margolies Roadside America photograph archive (DLC) 2010650110
General information about the John Margolies Roadside America photograph archive is available at hdl.loc.gov/loc.pnp/pp.mrg
Higher resolution image is available (Persistent URL): hdl.loc.gov/loc.pnp/mrg.00302
Call Number: LC-MA05- 302
Local call number: COM07319
Title: Interior of Spring Theatre in Crystal River
Date: April 1986
Physical descrip: 1 slide – col.
Series Title: Department of Commerce Collection
Repository: State Library and Archives of Florida
500 S. Bronough St., Tallahassee, FL, 32399-0250 USA, Contact: 850.245.6700, Archives@dos.myflorida.com