4) Captain America And Peggy Carter (Captain America: The First Avenger)
Something that makes Steve Rogers and Peggy so great is that they’re both leading lights of the Marvel Cinematic Universe – Agent Carter being the star of her own show rather just another love interest. More than that, though, they are surely the most tragic love story in any superhero film. Sure, straight up death is pretty sad, but how about being separated from your loved one across time?
What also marks the two out as one of the most fully-realized comic book movie couples is how we’ve seen the aftermath of them losing each other. While the movies have had Steve grieving for the life he lost with Peggy, Agent Carter explored the same thing from her point of view. We have likewise seen both of them move on, as we know that Peggy married a soldier Cap once saved while Steve is now in a relationship with… Peggy’s niece? Uh, no comment.