The House Bunny (2008)

When Shelly, a Playboy bunny, is tossed out of the mansion, she has nowhere to go until she falls in with the sorority girls from Zeta Alpha Zeta. The members of the sorority - who also have got to be the seven most socially clueless women on the planet - are about to lose their house. They need a dose of what only the eternally bubbly Shelley can provide... but they will each learn on their own to stop pretending to be what others want them to be and start being themselves.