X-Men: First Class costars Michael Fassbender and James McAvoy were spotted outside their hotel in London last night. The hot duo are in the midst of a press tour for the blockbuster that hits theaters in the US on June 3. The next stop on their itinerary will be NYC in order to participate in a junket tomorrow. Shooting the blockbuster, which took place over the course of the last year, actually seems to have started a love connection for Michael. He's rumored to be dating their cast mate Zoe Kravitz, and she even turned out to support Micheal as he made the promotional rounds for his last movie Jane Eyre. There must have been something in the air, since they aren't the only people who coupled up during the course of production — Jennifer Lawrence is reportedly seeing Nicholas Hoult after they met on set! She has done a few interviews on behalf of their joint project, but she's been booked lately prepping for her starring role in The Hunger Games. The latter series actually brings her back to the X-Men family, since Zoe's dad, Lenny Kravitz, was just cast as Cinna.