Some actors go to crazy (and impressive) lengths in order to change their appearance for roles. This is an interactive exploration of how some of the most dedicated moviestars have repeatedly gained and lost, sometimes dramatic, and even worrying amounts of weight, in order to 'become' their characters.
Take a look: http://www.bangandstrike.com/moviestars/#/home/intro
Let me know what you think... are these changes always necessary? Which transformations are the most impressive? What lengths would you go to for a role, if you were in their shoes?