I always say this in tags, but I’m going to say it here for once because I’m so tired of people trying to pigeonhole Jane as just the ‘love interest’ and denying all the amazing things she does:
Please notice how Jane is completely focused on the science of Asgard and asking questions and comparing their equipment to Earth scientific equipment.
Now notice that Thor is the one looking at her like she’s made out of magic and unicorns and fairy dust while she’s so engrossed with science, she almost forgets he’s there.
Thor is the love interest in this movie; Jane is the badass scientist who helps save the world. Yes, they’re in love with each other, and yes, Jane gets weak in the knees when Thor is around, but so does Thor, and being in love doesn’t stop Jane from defeating Malekith with her science skills.
Love doesn’t make you weak, and being in love with the lead male character does not mean you are a boring, one-dimensional character who doesn’t do anything of note. Stop dismissing female fictional characters as worthless just because there’s a romance in the story.