Robert Pattinson wore a beanie when he visited a studio in LA yesterday. This is his second studio stop of the week as he was also spotted dropping by the same location on Tuesday. Rob has been hanging out in California over the past few weeks while he works on his latest project, Maps to the Stars, which is slated to hit theaters next year. Rob's scruffy new facial hair may be for the film as Rob sported a five-o'clock shadow last week when he went on a grocery store run in Beverly Hills after the Fourth of July. Despite his casual time in LA, Rob was at the center of yet another relationship rumor, this time involving Riley Keough. However, her rep quickly put a stop to the gossip last week when she confirmed that the two are not dating.