Once In A New Moon (1934)

Starring Eliot Makeham, Rene Ray, Morton Selten, Wally Patch, Derrick De Marney
Directed by Anthony Kimmins
(actor & director credits courtesy IMDB.com)

A dead star pulls a small British island off the Earth and sends it into orbit, and after discovering they've been cut off, a political struggle ensues between a lord and lady and those opposing them.

This is an interesting science fiction effort from England, although it plays more like a fantasy, with no scenes of destruction or violence, and something of a whimsical tone.  Many of the characters are stereotypes, from the old doddering lord, to his cruel class-centered wife, to their idealistic young son who's fallen for a girl beneath his class, and his sneering rival who pushes for a violent raid on the lord's property.  At the center of the story is Makeham, playing the wizened postmaster of the community, who tries to warn the village's leaders of their plight but is dismissed by the pompous and wealthy.  Although the story ventures into dark territory at its climax with an army being formed to unseat the lord and steal his arms, Kimmins keeps things light through the inclusion of training scenes in which none of the soldiers can hit a simple target.  I wouldn't call this a great film, but it's a rare example of science fiction in the 1930s, and definitely worth checking out for familiar character actors in the cast such as Morton Selten, Derrick De Marney, and Thorley Walters.