The Rocket Post (2004)

In the 1930s a German rocket scientist moves to a remote Scottish island named Scarp, and the inhabitants are a bit apprehensive. To win the islanders over, Gerhard Zucker, the rocket scientist, invents means of rocketing mail to the island. Gerhard winds up falling in love with a local woman named Catherine MacKay, played by Shauna MacDonald, and things seem to be going great in his professional life, as well as his love life in this bucolic Scottish setting. But soon enough, the Nazis come to the island and demand that Gerhard go back to Germany, and if he refuses, they will execute his sister and her children. Gerhard must now choose between the new love of his life and the protection of his family back home.

The beautifully red-haired and full-blooded Scottish lass, Shauna MacDonald, bares her breasts in a dimly lit love scene with the German rocket scientist. Looks like his pocket rocket works just as well as his other experiments.