MAPS 1950, 1980, 1990, 2000, 2010 (pdf file 2mb)  (Boulder & Longmont )

Sources:
Film Weekly Film Journal yearbook 
1920,25,30,35,40,45,50,55

International motion picture almanac
1961,64,69,75,80,85,90,95,98,2000

LINKS

Digital City
Showtimes and theatre reviews

Paramount Theatre
Official website of this historic theatre

Colorado drive-ins
from www.carload.com

Landmark theatres
The Esquire, the Mayan and the Chez artiste

The Orpheum theatre
from the library of congress