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. The movie was released 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 the United States and Canada, which made it eighth in the box office at its first weekend. It fell off the chart by its third weekend. The movie only grossed a total of $47,707,151 worldwide, which failed to recoup for its $120 million budget and as a result, made the movie a massive box-office bomb.