Decla-Bioscop

Babelsberg Film Studio (German: Filmstudio Babelsberg, : BG1), located in Potsdam-Babelsberg outside Berlin, Germany, is the oldest large-scale film studio in the world, producing films since 1912. Today it covers an area of about 25,000 square metres (270,000 sq ft) and thus is Europe's largest film studio.

Hundreds of films, including Fritz Lang's Metropolis and Josef von Sternberg's The Blue Angel were filmed there. More recent productions include V for Vendetta, Æon Flux, The Bourne Ultimatum, Valkyrie, Inglourious Basterds, Cloud Atlas, The Grand Budapest Hotel and The Hunger Games.

Today, Studio Babelsberg remains operational mainly for feature film productions. Furthermore, it acts as co-producer on international high budget productions.

In 1911, the film production company Deutsche Bioscope built its first glasshouse film studio (early studios designed to take advantage of natural light) in Neubabelsberg. The company had been originally formed by Jules Greenbaum in 1899 and incorporated in 1902. As his business increased, Greenbaum made a deal with the chemist Carl Moritz Schleussner of the photochemicals firm Schleussner AG in Frankfurt/Main. Carl Schleussner had been involved since 1896 in producing negative film stock for Röntgen photography soon after its discovery. In February 1908 Carl Schleussner bought a majority share in Deutsche Bioscop as a film manufacturing, duplicating and sales operation, for a 2/3 share of 140,000 marks, with 1/3 provided by Jules Greenbaum & his brother Max. Ownership of Deutsche Bioscop was transferred to Schleussner AG and registered on 27 February 1908: Schleussner bought out the Greenbaums' remaining share of Deutsche Bioscop in 1909.

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