while a long-running dispute over who owned the Wertheim department store site (or had claims to the revenue from its sale by the government), left another large gap in the central Berlin cityscape that is only now finally being redeveloped. This development, known as Leipziger Platz 12, is a large complex with facades in three streets (Leipziger Strasse, Wilhelmstrasse and Vossstrasse) as well as Leipziger Platz itself, and when completed will contain 270 stores, 270 apartments, a hotel, a fitness centre and offices. However, this development brought about the demise (after several stays of execution), of the legendary Tresor nightclub and centre for techno music. Founded on 8 March 1991 in the basement strongrooms of the former Wertheim store's bank, these having survived the decades largely undamaged, the club finally closed on 16 April 2005 (it reopened on 24 May 2007 in a renovated power plant on Köpenicker Straße). Facilities and attractions The rebuilt Potsdamer Platz now attracts around 70,000 visitors a day, rising to 100,000 at weekends. It is a particularly popular attraction for visitors: the "Arkaden" shopping mall is in length. There are also four major hotels, and Europe's largest casino (Spielbank Berlin). Film and theatre The Theater am Potsdamer Platz is a theatre for musicals seating over 1600 people. It is known as the Berlinale Palast during the Berlin International Film Festival, serving as the venue for the premieres of competition films and several special gala films, as well as the opening and awards ceremonies. The CinemaxX Potsdamer Platz is a multiplex cinema containing 19 screens and seating up to 3,500 people. It has been the main Berlinale screening cinema since 2000, two years after its opening in 1998. Since 2000, the two Potsdamer Platz venues have served as the two principal venues of the festival. Newer buildings Future Whilst on the surface the new Potsdamer Platz appears so far to have lived up to its expectations as a futuristic centre of commerce at the heart of Europe's youngest capital city, there has been much debate as to just how successful it really is. Certainly its long-term success and viability have become much harder to judge since the recent worldwide economic downturn, a situation compounded by the actions of its two principal owner-occupiers. Daimler and Sony caused a major surprise on 2 October 2007 when both announced that they were putting their respective complexes at Potsdamer Platz