Exclusive Hitchcock Blu-ray Extra: Anthony Hopkin's Transformation

Helen Mirren and Anthony Hopkins proved a dynamic acting double act in Sacha Gervasi's Hitchcock biopic.

But most stunning of all was Hopkins own transformation into the infamous rotund, jowly auteur.

Our exclusive look at one of the Blu-ray extras takes us behind the behind-the-scenes of the make-up transformation.

Watch it now and let us know what you think in the comments below.