If you happen to be going to Cannes this summer (and, really, if you aren’t, you should be) mega-conglomerate Unilever is ready to tempt you with a treat straight out of Minority Report. The company has set up a vending machine that lets anyone who walks by score some free ice cream. The price? Just smile for the machine’s facial recognition software, which will determine your age, gender and emotion. Only the most happy will get ice cream. The rest? We don’t really know, but we seem to remember something having to do with stolen eyeballs that can be used to trick such systems.