Natalie Portman Joins David Gordon Green's Medieval Comedy 'Your Highness'

How’s this for perfect casting?

Natalie Portman has signed on to co-star in David Gordon Green’s medieval-stoner-comedy “Your Highness,” according to Variety.

Already starring Danny McBride and James Franco, the film will follow the story of an arrogant lazy prince (McBride) who, along with his brother (Franco), must complete a quest to save the kingdom and his brother’s fiancée. Portman will play a warrior princess that the lazy prince falls in love with. McBride described the comic fantasy project as,” ‘Krull’ meets ‘Barry Lydon,’ ” a few months ago when we ran into him at SXSW which made us laugh heartily. Green once said the project was,”about a prince who smokes weed and fights dragons.”

As well as starring, McBride also co-wrote “Your Highness” with writing partner Ben Best. The two previously co-wrote and starred in Jody Hill’s “The Foot Fist Way” as well as the HBO’s series “Eastbound And Down.” “Your Highness” will reunite the trio McBride, Green and Franco who worked together in last year’s “Pineapple Express.”

Production on the film is set to begin in Ireland this July and it sounds like a summer 2010 picture to us.