Netflix has released the full trailer for Season 3 of The Crown. The third season marks a reboot of sorts as a new cast comes in to take the lead roles of Queen Elizabeth (Olivia Colman), Princess Margaret (Helena Bonham Carter), and The Duke of Edinburgh (Tobias Menzies) with the story moving into the 1970s. The biggest change, aside from the political upheaval facing Britain, is that Prince Charles is now an adult. Obviously, there’s the whole Charles and Diana stuff on the horizon, but as you can see from the first two seasons of The Crown, showrunner Peter …