It has been reported that Shahrukh and Anushka are facing a tough time, shooting in London because of the crowd. Reportedly, most of the scenes featuring SRK and Anushka have to be shot on the streets, amongst the crowd of crazy Bollywood fans. Hence, it was a problem shooting for the film.
Things have turned so ugly for SRK that his lunatic fans have been stalking him at every possibly area, where he is visiting. It's difficult for him to hide, as along with shooting, he is also holidaying in London with his kids.