Did you know that Louis XVI and Marie Antoinette had a son, and that this son when he was aged ten and in danger from the Revolution, fled to a small Welsh island in a balloon? You didn't? Quelle surprise!
This is Dangerous Exile's basic premise. It's a fantastical and farcical one at the same time, and it's to the cast's credit that they manage to play it straight throughout. There is the usual amount of swashbuckling (although confined to the last third) and the kind of laboured "historical" dialogue which 50's screenwriters appear to have been unable to overcome. Jourdan and Michell both move with a stiffness and moody demeanour which can only mean there's a haemorrhoid attack on the horizon, while Belinda Lee (as an American visiting her rich English aunt!) provides an arresting decolletage but little else.
A lot of this movie was shot at night and as such has a brooding quality which often overwhelms the slight material. Hurst, a stalwart of British movies of the 40s and 50s, keeps things moving in a methodical manner, but when all's said and done, there are too many familiar, staid elements for the movie to work as a whole.
Mildly enjoyable if you like this kind of movie, and only 5 out of 10.