American here... Absolutely loved this movie.
I'm a self admitted Michael Jackson nut, so that was my draw in seeing this movie. And I loved all the Michael Jackson references throughout the movie, as an MJ fan, they were both hilarious and gave MJ mad props. But it was the charm of the movie and the likability of the main actor that really won me over. I laughed a lot, and I really rooted for Boy. One of my favorite movies of the year so far. 9/10
Also: the line, "Don't get into the Nazi stuff" had me rolling.