In reply to Vaughany89:
Near the beginning of the film they are in a bar. One of them goes behind the bar and pulls 2 beers, carefully filling the glasses to the brim and scooping off all the foam with a palette knife. The camera cuts back and he comes around holding the 2 glasses which now have a good 1" of head on them.
Django then takes a drink out of his glass and puts it down on the table, fuller than when it was handed to him.
Not that I'm obsessed with full pints or annoying films or anything.
I wish the Guardian hadn't given it 5 stars, then I wouldn't have gone to see it. I don't get, and don't like, Tarantino's reality shift.