For years, Walmart-owned Vudu has had a reputation for its high picture quality and ties to Ultraviolet digital copies. Now, the video on-demand store is trying something new: free movies. There is a catch, however, as the free flicks will contain advertising breaks. Otherwise, viewers will be able to log in from computers, phones and TVs to watch movies like True Grit, Mad Max and more without paying a dime. It's an interesting scheme, and if anything, may get more people to try out the Vudu app installed on their TV, game console or Chromecast.