Okay, let's get the movies out of the way
Bitcoin VI: The Undiscovered Block
Invasion of the Bitcoin Snatchers
Bitcoin Beyond the Stars
(or could be "Bitcoin Beyond the Stars - Mercury, Saturn & Jupiter")
The UBER geeky one, that non-geeks won't get and many geeks might not get at first either! But mystery is memorable, so:
“Bitcoin,” said Deep Thought, with infinite majesty and calm.
And my new one on the space/planetary vibe:
"Bitcoin: now accepted on Mercury, Saturn & Jupiter!"