Subscribe now: https://www.youtube.com/c/funnyordie?...
Watch more Between Two Ferns: http://bit.ly/FODBetween2Ferns
Become a fan on facebook:   / funnyordie  

Sean Penn sits down with Zach's twin brother, Seth Galifianakis.

See the original at: http://www.funnyordie.com/videos/4112...