Rags Martel also asked James McAvoy about Trance, a thriller directed by Danny Boyle that is due out at the end of this month, and about taking on the role of Macbeth in the West End.
The actor is currently starring in the Shakespearean tragedy at the Trafalgar Studios.
Last year the London cityscape provided a stunning backdrop to the latest James Bond film Skyfall.
But now there's a new movie in which the capital plays a starring role.
Welcome to the Punch is a crime thriller filmed in places like Canary Wharf and the east end.
Rags Martel has been to speak to actor James McAvoy about the film.