I googled million dollar and million pound door. It was million pound door.
http://www.pprune.org/passengers-slf...t-ba-up-3.html
(Radeng, 3/8/2010)
"I was told (by BA ground staff) that internally and informally, the Concorde door is referred to as the 'million pound door', as BA have to pay an extortionate amount to BAA to have that door and not have F class pax walk past the shops."