Not to mention who he brought as his date... yep, none other than his beautiful mum Anne Twist. To see her smiling like that only a few weeks after losing her husband Robin Twist is making our hearts MELT!
There was even a little Harry-ception, when two of our fave Harry's collided.
Prince Harry and Harry Styles in the same room? *SWOON*.
Being his first ever movie, Harry was extremely excited, and maybe a little nervous as he fumbled around and answered interview questions...
It's all too much. Dunkirk hits cinema's July 21!!!