"A Royal Night Out" is classic British comedy, set in a more innocent, nostalgic time period. While it relies a great deal on dialogue and performances to bring out the humour in the film, there's also a decent plot and good character development for the two princesses. It manages to hew to the archetype of the royal fish out of the water, while staying clear of the cliches that are naturally associated with such situations, presenting a heartwarming comedy that leaves you feeling good as you leave the cinema.