find three differences between these pictures

[Michael]

There are two pictures identical to each other; you have to find
three differences. If you can find three differences, then you are
part of an elite group of individuals.
This has been tested on many people, and hardly anyone found
the three differences.

[rusty]

Man that had me totally freaked out! I'm glad i didn't watch it in the middle of the night!

[Michael]

yeah, jason sent me that, I had my computer hooked up to the stereo so it really made me jump. :evilbat:

[Chris]

Well, the ship on the right is a bit smaller HOLYCRAP!