How realistic are the wax models at madame tussauds?

Since I was a little kid I have always wanted to go to MD, and a couple of weeks ago my dream came true. Except instead of Spice Girls there were a bunch of pop/movie stars I didn’t know. Still an enjoyable experience, but probably not as enjoyable as it was for the people in this video (via mtlb):

Oh and our plane to Milan was grounded meaning we had to skip having dinner with George Clooney at his fav restaurant in Lake Como (thanks for the tip @handypearce). So it was good to at least get a snap with him, to show my grandkids when I am geriatric and forget that the event never actually unfolded: