Having established her big-screen cred with Knocked Up, Katherine Heigl tries a little further Grey's Anatomy moonlighting with 27 Dresses. But while Heigl is terrific, this romantic comedy is considerably less so.

Heigl's plain Jane is the owner of those 27 dresses, a perennial bridesmaid who has saved the dresses squished in her closet in the hope of one day being the main attraction. She secretly loves her boss (Edward Burns), but before the big confession, her sister (Malin Akerman) falls in love with him. Meanwhile, Jane is also fending off advances of a cynical writer (James Marsden), who, unbeknown to her, pens those commitment columns in a New York rag, which she has been clipping out for years.

Will Jane finally find the right guy or is she destined for Bridesmaid's Dress No 28? Does the devil wear Prada? It so happens that the person responsible for the 27 Dresses script is none other than The Devil Wears Prada screenwriter Aline Brosh McKenna, but in fashion world parlance, this one's a shameless knockoff.