Ryan Gosling on The Gangster Squad Set Pictures

Ryan Gosling wore a boutonnière on his double-breasted suit on the set of The Gangster Squad last night in LA. Ryan has been shooting the period piece around town since September, and during his time away from the set, he's been striking up a new romance with Eva Mendes. The duo apparently got involved while they were working on The Place Beyond the Pines on the East Coast over the Summer. Last weekend, Ryan and Eva were spotted kissing in a car, and they've also stepped out for hiking dates and a trip to Disneyland. On screen, Ryan has been locking lips with Emma Stone once again. The actress is playing his love interest in the film after costarring as his girlfriend in Crazy, Stupid, Love. The comedy is one of three films Ryan has appeared in over the past several months. He's clearly in high demand in Hollywood, and his impact just landed him a spot on a list of the 49 Most Influential Men alongside big names like Steve Jobs and Simon Cowell.