There has been a trend lately of Disney adapting some of their best animated features into live-action films. It all began with Tim Burton's Alice in Wonderland in 2010, which led to Maleficent, due to open in the summer of 2014, and Cinderella, currently being filmed for a 2015 release date.
As was revealed in a Hollywood Reporter article, the next film to be given that treatment is 101 Dalmatians (again, technically). Just like Maleficent, this movie will apparently focus on the villain, Cruella de Vil, and will be titled Cruella.