Doctor Who: 20 Things You Didn't Know About The Angels Take Manhattan
12. The Letter Scene's Crazy Filming Conditions
Speaking of this scene, it was way more complicated to film than you'd think it would be.
For this tearful farewell, Smith was afforded not three takes, not two, but one. One take. This is because it was shot on location in Central Park, where hundreds of people had gathered to watch it being filmed.
Imagine the stress the crew must've felt – it can't have been easy.
Smith was given a different page of the book to hold in case somebody photographed the real one, and Gillan was forced to read her lines incredibly quietly in case she was recorded.
Despite all this pressure, Smith pulled it off, which is a testament to just how bloomin' good of an actor the man really is.