Recognised in the Queen's 90th birthday honours list in June 2016, Sonia was presented with the award today at Buckingham Palace by HRH Prince Charles.
Speaking after she was awarded the accolade by the Prince, Sonia said: "I was all cool about it until I walked down this carpeted corridor surrounded by Rembrandts and the history.
"I'm very emotional, I've been crying actually... it's a very strange experience."
Asked what the pair had discussed, she said: "He asked me if he could come to see Harry Potter.
"He'd heard it was quite long and I said it's fine because you can nip back home for a cup of tea in between parts."