How Do You Know is a 2010 American comedy-drama movie produced by Julie Ansell, James L. Brooks and Paula Weinstein, and written and directed by Brooks. It premiered on December 17, 2010 and received negative reviews with a 30% rating on Rotten Tomatoes and a 47 out of 100 from Metacritic. It became poor at the box office with $7.6 million made in North America, which made it eighth in the box office at its first weekend. It fell off the chart on the third weekend and grossed a total of $47,707,151 worldwide. It failed to recoup for its $120 million budget and made it a massive box-office bomb.