Reese Witherspoon may be the monogamous, mothering type in real life, but in the new trailer for her latest rom-com, How Do You Know, she plays a woman who isn't sure that "traditional life" is for her -- until she meets Paul Rudd.

The film, written and directed by James L. Brooks (As Good As It Gets) seems to have it all -- a great cast with Reese, Rudd, Owen Wilson, and Jack Nicholson, a funny love triangle and most of all, Reese looking hotter than she has since Legally Blonde!