This Natalie Portman photo contains
fedora, felt hat, homburg, stetson, trilby, porkpie, porkpie hat, and snap brim hat.
There might also be
campaign hat, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, beaver, boater, leghorn, panama, panama hat, sailor, skimmer, and straw hat.