Joaquin Phoenix remembers his Joker: Folie Deux co-star, Lady Gaga, spitting up her cup of joe when she first heard him sing. But Phoenix is also quick to point out how encouraging his on-screen love interest was when it came to pulling off Arthur Flecks, aka the Joker, attempts at expressing himself through song. Perhaps it’s difficult for fans to envison Phoenix Gene Kelly-ing his way through a comic book movie, but que sera, sera.
