Its being built by Elite Home Theater Seating (Same company that did the PotC theater room) for a customer in Conn. The installation includes a separate study which is the entrance to the hidden cinema. The study, complete with a stately grandfather clock, is flanked by bookshelves upon which sits a bust of William Shakespeare.
A clockwise turn of the writer's head the grandfather clock swings open to reveal the elevator doors. A real fingerprint scan is required to gain access to the elevator.
Stepping into the cylindrical stainless steel elevator a glowing Bat symbol pulsates at the bottom of the button panel. To the left of the symbol, is the letter 'B' that stands for Batcave.
After pressing the iconic glowing bat symbol, the elevator descends and the floor-to-ceiling mirrors on either side of the elevator come alive by displaying various body scanning graphics.
Once the elevator occupants have been properly 'identified', a robotic female voice states over the intercom system, 'Security Clearance
Source: The real-life Batcave: Dark Knight superfan spends £1.3MILLION creating home cinema replica of Bruce Wayne's underground lair | Mail Online