It's the Fausto Theater, as identified on this photo blog.
More information on the history of the theatre found on cinematreasures.org.
Located in the Habana Vieja (old town) district of Havana, on the
Prado at the corner of Esquina Colon in the Jaruco neighborhood.
The Cine-Teatro Fausto was built in 1938 and designed in an Art Deco
style, by architect Saturino Parajon. It has a simple Art deco facade,
with vertical patterns above the entrance, flanked by horizontal
delineations and has curved corners. Decorative botanical friezes and
reliefs suggesting castlations on top.
And a Google maps link for the location.