Explaining on Instagram: "In the ending of Thor: The Dark World (2013), the kiss between Chris Hemsworth (playing Thor) and Natalie Portman (as Jane Foster) is iconic — but behind the scenes, something surprising happened. Since Portman wasn’t available for a reshoot, Hemsworth’s real-life wife, Elsa Pataky, put on a wig and Jane’s costume and stood in for her. 😮💋 Portman later explained that it “was such a perfect solution,” while Pataky’s real-couple chemistry with Hemsworth brought an extra