YOUNG HOLLYWOOD TV
Reynolds dons his Green Lantern costume for the promotional shot, while Grint is seen with a wide grin in his picture - and the Harry Potter star hopes he can encourage fans to drink more milk.
He says, "I come from a big family and my mum always made sure we had lots of milk to drink as kids. It's low in fat, refreshing and good for you, and really tasty too. Nowadays I still have milk with cereal for breakfast and always try to pick up a milky cappuccino when I'm on set or on a photo shoot - it's important to get your daily dose of milk."