Animal House trailer: have things changed much at all?

The "bromance" has been branded as though it's a new era for the twenty-something dude film, but National Lampoon's Animal House (1978) and many other movies of that time profited on the same raunchy humor and adventurous pursuit of women. The only real difference, in my eyes, is that this is the focus is on a larger fraternal organization, rather than one single male bond. Any thoughts?