Neville Longbottom himself, Matthew Lewis, has revealed that former co-star Rupert Grint had been playing a prank on him for months without him noticing. 

Lewis was on This Morning to talk about his role on the BBC series Happy Valley when he shared a story about Grint. The pair starred together in eight Harry Potter films but hadn't been in touch for a couple of years before they reunited to launch a new theme park in Florida recently. It was there that Rupert decided to let Matthew in on the little prank he'd been playing on him. 

The worst part of this is that Lewis didn't even notice that Rupert was doing this. They've far too much money to play with those boys. 

Via Metro