John Travolta has never met an opportunity to sing and dance that he didn’t like. And that’s exactly what he was doing behind the scenes while filming his upcoming crime thriller, The Forger. Travolta’s co-star Abigail Spencer told E! at the premiere of her new dramedy, This Is Where I Leave You, “I was a song and dance girl and he’s a song and dance guy. I play an undercover agent and we’d be in the park and he’d be in his criminal getup and all of a sudden we’d be doing a time step in the middle of a park in Boston.. It was amazing.” Even more amazing, singing Grease tunes with Travolta. She said, “It was kind of surreal. We’d bust out, ‘You’re The One that I Want’ or something. It was very organic though. I didn’t want to push it.”