'Wolf-pack' formation takes hold in the UK

'The Hangover' franchise has encouraged British men to form a "wolf-pack."

The social lives of males between the ages of 18-34 has changed since the first of the three movies came out, with 45% claiming they belong to some sort of wolf-pack, 17% actually naming their gang of mates the 'wolf-pack' and 21% saw themselves as the top boss of the pack.