http://www.variety.com/VR1117998898.htmlIt has worked before for Warners with the "successful" Scooby-Doo franchise as well as 2 films featuring the original Warner Bros 'toon crew, The Looney Tunes.
Along with Tom & Jerry, and the rights to Hanna-Barbera's line of animated properties, Warners also has big-screen adaptations in development featuring "The Jetsons" and "Yogi Bear".
Time and box office revenue will tell if these are good ideas after all. I don't have my fingers crossed though.