As I mentioned before, Eternals will not only be the team’s first appearance in the Marvel moves in order, but the first time they have been been featured in a different medium than comics (unless you count a motion comic series from 2014).
The Eternals also once aided Thor before erasing his memories of them so as to keep their existence a secret.
In fact, Marvel Comics has never been a particularly consistent home for the team’s story to be told… but more on that later.
Ironically, the Eternals themselves would, at one time, suffer that same affliction.