Amazon.com has a contest to help burgeoning film makers get their projects made. One of the finalist is 'Sky Pirates' by Gary Dragan Milin. The test movie is made with voice actors, music, and storyboards. The synopsis is as follows:
In 1940, a US airship is sent on a top secret mission into the uncharted African interior in order to intercept a Nazi Zeppelin involved in an archeological expedition that could make Hitler’s armies invincible.
The film is almost an hour and twenty minutes long, and you can watch it here.