Photo: IFC and Shudder If you’ve ever wandered into a Free People and come out $1,000 poorer, you’ve probably wondered, “What kind of witchery happened in there?!” The new Diablo-Cody-approved horror satire, Forbidden Fruits , which just had its world premiere at SXSW and hits theaters March 27, takes that idea to the extreme — with the stylized, slang-tastic flare of Mean Girls , if you turned it into a lady slasher and added a bit of the occult. It’s also, notably, Lola Tung’s first major