TABLES
Here is all the 140+ theatres in the New Haven and Bridgeport area in this Excel file 

MAPS

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

DIGITAL CITY
Showtimes etc, also shows Hartford cinemas.

CINE 4 
In New Haven

YORK SQUARE
in downtown New Haven