10 Best Fan Theories For 2017's Biggest Movies

10. Guardians Of The Galaxy Vol. 2 – Mantis Is Peter Quill’s Sister

This might seem a moot theory since GOTG 2 already gave us Mantis’ backstory – that’s she’s an orphan found by Ego while still in her larvae stage, raised by him into adulthood and kept around because her empathic abilities allow him to get some much-needed shut-eye – but bear with us.

We know that Ego spent his life traversing the universe impregnating women left, right and centre in order to breed a kid with the Celestial gene needed to put into motion his plans for intergalactic domination. What if Mantis was one of the many love-children he left scattered across the cosmos and avoided the same fate (i.e. death) endured by his other non-Celestial kids because he had a use for her via her empathic powers?

Seeing as Avengers: Infinity War is as crammed with superheroes as it could be, it’s unlikely we’ll see this theory proved wrong or right anytime soon but perhaps a Luke and Leia style twist is headed our way when Guardians of the Galaxy Vol. 3 is released in 2020. Hope fully without the twincest kiss, though.