Character mistake: 27/1/15 Max tells his two daughters to get in his car to go to Emma's funeral. Max's car is a Mercedes SLK which is only a two seater, and therefore wouldn't seat three people.
Character mistake: When Pat goes to Roy Evans' car showroom to complain about the dodgy car he sold to her son David, she asks Roy if he has any children. Roy replies that he has two sons which was true, but at this time Roy didn't know he had a second son, Nathan, conceived years before when Roy had an affair with his secretary Doreen. He only found out years later when Nathan turned up to tell Roy that Doreen was terminally ill. When Roy was speaking to Pat he only knew about his first son and business partner Barry.
Answer: Albert Square is a set in the BBC studios in Borehamwood, on the north side of London. The trains, to the best of my knowledge, are simply a bit of the old TV magic. As far as the extras go - it's not difficult to get extras in reasonable numbers through agencies.
Tailkinker ★