The latest movie in the X-Men franchise, Dark Phoenix, came out in a blaze of... well, not glory. This movie got HORRIBLE reviews - critics and fans alike were NOT here for Jean Grey's big fiery moment. Why was that? Why did this movie do so EPICALLY bad? Well, that's actually on Marvel itself. Oh, I don't mean Marvel Fox - I'm talking Marvel DISNEY and it's cast of Avengers. Specifically, one single Avenger that caused Dark Phoenix to FAIL!