VIDEO: Sean Penn Glowers, Threatens Zach Galifianakis' Twin Brother in Latest Between Two Ferns

Movieline's favorite botanical web series, Zach Galifianakis' Between Two Ferns, has issued a new episode that is unfortunately without its hirsute mischief maker doing the MC'ing. Instead it's Zach's twin brother, "Seth," who gets to interview a very sullen Sean Penn and ask the Oscar winner about famous actors like Ryan Reynolds and "Jack Nicklaus." It's all perfectly amusing -- one wonders how it's possible for Penn to stay in irritable character for three minutes! -- and brought to you by Speed Stick. Of course. Click ahead to watch the funny.

[via Funny or Die]