Gaumont Bromley

I was living in Bromley Common in the mid-1950s. My parents ran a grocery store there which, because it had a billboard for the Gaumont outside the shop, gave us free tickets each week. I used them to good effect. However, I seem to remember two other cinemas in Bromley at the same time. One was certainly the Astor (it was called something else by then), but there was a third, near the Astor, and for the life of me I can’t think what it was called. I saw “The Vikings” (1958) there. Does anyone know the name of this cinema?