Being a northern Brummie I can answer that easily - the Pavilion, Wylde Green, corner of Gravelly Lane and Chester Road, just outside the City in my day. Checking up in the Cleggs' lovely history of Brum Cinemas, I see that it was designed by Harold Seymour Scott,and opened on 10 October 1931, a month 5 weeks before the Pavilion Stirchley, designed by the same architect for the same clients who had dreams of building a chain of Pavilion cinemas in the Midlands. I nremember the Pavilion quite well, and my dad more so, as in the 1960s after I left Brum he became quite active in the Theatre Organ Society, which often met there on Saturday mornings. (They were all playing church organs on a Sunday of course).
Peter