I mean, there were rights and options floating around for a Metroid movie some years back (bought by a production company owned by John Woo if memory serves me well). There is potential to make a marvelous movie out of Metroid. Something about exploration of a strange, beautiful and dangerous world, about the discovery of an ancient and mysterious culture... but you know your average script writer would find a way to add several characters, possibly turning the space pirates into humans, adding a roguish adventurer among them that would become a traitor to his crew and a love interest for Samus. Samus would probably have an old mentor in her spaceship that would craft her weapons and armor or something and the plot would be about treasure hunting for a chozo artifact...