Comic Con in London during April 2011, director James Watkins confirmed filming had been completed in December 2010 and post-production would go on until June 2011.
Comic Con London pada bulan April 2011, sutradara James Watkins mengkonfirmasi bahwa syuting telah selesai pada bulan Desember 2010 dan proses pasca-produksi akan berlangsung hingga Juni 2011.