It appears Lion's Gate is a major player in YouTube's streaming service. Google doesn't seem to have deals in place with most major studios -- Paramount, Fox, Sony Pictures, Universal Studios, Warner Bros, MGM -- but it's been long rumored to be courting a few these hoping they'll jump aboard. Their current partner list includes the likes of Image Entertainment, Sony-owned Crackle.com, Bollywood, and Screen Media -- among others.
Rental periods are from 24 to 72 hours and payments are processed through Google Checkout. The YouTube store (US-only) should go up against other online rental venues like Apple's iTunes and Amazon's Video On Demand.