films also have a fondness for revenge or the lamentation of one's (usually Kirk or Picard's) mortality.
Granted, these are probably the two most common thematic strings throughout the history of storytelling, but aren't usually addressed so matter-of-factually through immediate discourse like they are in Trek film.
*raises an eyebrow* A fascinating interpretation but one which I suspect you are the minority holder of.
Uniquely alien being comes to Earth to make contact with specific creature. When it cannot make contact with said creature, alien being threatens to destroy Earth. Enterprise
crew travels into the unknown to save Earth.