Charlie and Martin Sheen Star in Hilarious 'Sheenpocalypse Now' Roast Promo (VIDEO)

We've been covering a lot of Charlie Sheen roast news around here lately: the roast roster, preview clips and promo videos, but the latest, a video starring Charlie and Martin Sheen in a spoof of 'Apocalypse Now,' is by far the funniest yet.

It starts with Charlie, with his face painted in camouflage, swimming in the darkness, channeling his dad's classic 'Apocalypse Now' character Captain Benjamin J. Willard. As a voice-over of Charlie reciting his dad's famous monologue plays (with a few slight tweaks), the camera pans out, and we realize Sheen is just swimming in his backyard pool. Then his dad comes out of the house and yells at him to wash his face and get inside and tells Charlie's poolside goddesses it's time to go home as Charlie laments, "C'mon Dad!"

The video was directed by Roman Coppola, who will also direct the indie film Sheen just signed on to do called 'A Glimpse into the Mind of Charlie Swan III.' According to EW, Martin's involvement in the sketch was a last-minute decision that Charlie announced to the crew by saying, "We're going to need some lines for my father."

Check out the hilarious and oddly heartfelt video after the jump.

Comedy Central Roast of Charlie Sheen

The Comedy Central Roast of Charlie Sheen airs Mon., Sept. 19 at 10 PM ET.