Hollywood and the United Kingdom collided this week when Angelina Jolie received an honorary damehood from Queen Elizabeth at Buckingham Palace. The actress was recognized for her efforts to raise awareness against sexual violence around the world, and the Queen’s moment with Angelina marked yet another meeting between royalty and celebrities. Over the Summer, the queen stopped by the set of Game of Thrones, where she met cast members Rose Leslie, Kit Harington, Lena Headey and more. That got us thinking: even when they’re not from the seven kingdoms (like these Game of Thrones stars), celebrities are often considered to be Hollywood royalty, right? They have massive fan bases, their public appearances can cause a frenzy, and they live lavishly with the money they make. They even sometimes receive gold for their work – in the form of statues and awards, of course. But what happens when they meet actual royalty? Scroll down and to see even how huge Hollywood stars get a little starstruck sometimes.