Zoë Kravitz and Austin Butler are sparking romance rumors following their 'Caught Stealing' premiere appearance. What is their age gap?

Austin Butler and Zoë Kravitz’s chemistry is sizzling off-screen, too. The “Caught Stealing” co-stars’ interaction at the film’s premiere in Paris, France, on Thursday did little to quell the romance rumors between them, as they stopped and gazed into each other’s eyes while posing for red carpet pics.