The postcard shows Bánffy Palace in Cluj-Napoca, the second most populous city in Romania. Bánffy Palace built between 1774 and 1775 by Johann Eberhard Baumann for count György Bánffy. The National Museum of Art has located in this building since 1951.
I don't know much about this cinema. You can see the name Capitol over the entrance. It opened in the 1920ies and closed in 1974. The cinema occupyed the inner yard of the palace - maybe an open-air cinema?
The postcard is a reprint of an old photo, I got it with Postcrossing. Vielen Dank, Beate!