Usually, curls are better dealt with when there is length involved allowing them to be stretched out with weight.  Adrian Grenier proves that a style with a little all-over length is great for a guy so long as the curls are not too tight.

In keeping with the season's loose, flowing waves, Adrian Grenier cooperates with this longer cut which naturally allows curls to relax.  Offsetting his curly mane, would be the density of the stubble from his thick beginnings of a beard.