Not a lot of people were expecting Natalie Portman to ever make a return to the Marvel Cinematic Universe, especially when she'd previously been so dismissive about her involvement in the franchise following Thor: The Dark World. Taking one of the best actresses of her generation and saddling her as the one-note love interest of a superhero was endemic of the problems that have seen the God of Thunder's first two solo outings widely regarded as two of the weaker entries in the MCU's back catalogue.