"The latter half of the gallery sequence, when you’re starting to feel the flirtation start to brew, I was in SUCH a bad way," he recalled with a laugh. "Having to sort of be playful, and flirty, and charming, while feeling like you’re on death’s door was some of the best acting I think I’ve done to date — hopefully people don’t register that!"
Meanwhile, Hathaway was "really, really sick" during one of the film's more emotional scenes (that we won't spoil here!). "So this is kind of what I was saying before, as well, [about] the reliance on one another to really pull each other over the line," he said.