Originally Posted by martok2112
Take Star Wars, Battle Beyond the Stars, Battlestar Galactica (the original series), even a couple of Star Trek themes....you'll hear similarities in motif.
Those are some very good examples of the same phenomenon.
I've collected and arranged much of these types of music on the same CD and the similarities abound even when you're not dealing with the same composer...
For some reason to me...Indiana Jones Theme and Star Wars seemed so much a like I could never remember both at the same time.