Bit more info on the Forum
The street address of the Forum Cinema was 88/90 New Street (cormer of Ethel Street), Birmingham It originally opened as the Theatre De Luxe in 1908 (a conversion of a Masonic Hall). In the 1920's it was re-named Regent Cinema and was taken over by ABC Cinemas.
ABC commissioned their staff architect William R. Glen to reconstruct a modern cinema within the shell of the old building. Due to site restrictions it was a rather tall narrow cinema seating a total of 1,259 (501 stalls, 348 balcony and 410 upper circle). It was equipped with a Compton theatre organ. The Forum Cinema opened on 1st November 1930 and operated as a popular city centre cinema for the ABC circuit, due to its prime location. However it was no match for the new breed of 'Super' cinemas that were being built such as the Gaumont Palace, Steelhouse Lane (1031) or the Paramount which opened just along New Street in 1937. ABC actually had much better cinemas operating in the suburbs of the city, than their Forum in the city centre.