The cinema Lichtburg opened in 1928 with 2000 seats. It was destroyed in 1943 and reopened in 1950. The Lichtburg has still today one hall with 1250 seats. A second smaller hall with 150 seats is called Sabu - in memory of the Indian actor Sabu (1924 - 1963), famous from The Thief of Bagdad (1940).
Unfortunately the stamp isn't left on the card, so I can't identify the date/year of the postcard. I think the picture was made in the early 1930s.
So the Lichtburg is one of these old film palaces from the great 1920s era, of corse a listed
monument and really worth seeing. There can still played movies in 70mm,
for instance the new Tarantino The Hateful 8.
I'm still wondering about the name of the cinema: Winterstein (in English "Winter Stone"). It could be a place name. And then it could be from the actor Eduard von Winterstein (1871-1961). But he is more famous as a theatre actor than a movie actor. And he was still alive, when the cinema was opened. It wasn't usual to name a building after a living person.
The sign above the name was the logo of Junge Pioniere, the East German youth organisation of schoolchildren aged 6 to 14. Under the logo is written: "Unser Vorbild ist die Partei. Wenn sie uns ruft, sind wir bereit! - The party is our ideal. We are ready, when it calls."