The film is Jim Jarmusch’s Only Lovers Left Alive, which is supposed to be releasing sometime this year. Our Mr. Hiddleston is a Vampire! Musician! with a One True Love! (Why don’t I just start sighing now to be in perfect practice for once the movie releases?)
Other actors include Tilda Swinton (below, pictured with TH) and John Hurt, both of whom I like as well. I’ve never seen a Jarmusch film before (though I highly approve of the last name) but with the cast and the storyline, I do believe this will be my introduction to his oeuvre.