Jennifer Aniston took her floral Christian Dior dress on the town after walking the red carpet for the London premiere of We're the Millers on Wednesday. She added a leather jacket to the ensemble and headed to dinner at the Wahaca restaurant. Jen's travel overseas was rumored to be rife with a possibly awkward run in, but once she got there she was all smiles with her costar Jason Sudeikis at their London screening. Jennifer threw fiancé Justin Theroux a star-studded birthday party in LA over the weekend and was spotted showing off her enormous engagement ring at LAX as she jetted off on this adventure. Her flight could have been an uncomfortable one, apparently, since an airline source revealed that Jen was scheduled to be on the same flight as Angelina Jolie. Jennifer ended up changing her departure time, though no real word on whether Angelina was the reason. Either way Jennifer is certainly sick of the rumor mill — she did call out reporters for asking about wedding and any pregnancy plans so frequently.