Filming outside my window right now

Last night Kate Mara (I'm pretty sure, certainly a very pretty red head)was filming in the car park right opposite my flat in Bell Street, which has been transformed with loads of 1940s type cars and a sign that reads "Pickering Garage, London". They were filming until about 3am or so. I didn't watch the whole time but the scene involved two cars driving into the park fast, and the redhead (Mara?) jumping out and talking to three other guys.

Today during daylight they filmed a scene where a woman walks past a car that is rocking back and forth with the windows steamed up, and pulls her two little children away in disgust. Then the doors open and two guys jump out - presumably these characters are gay? Maybe I misinterpreted what was going on!

Haven't been able to spot Charles Martin Smith, but I would love to tell him how big a Buffy/Untouchables/Drive fan I am. Hope the film is cool...