Originally Posted by Rock Sexton
What does it matter? They're simply highlighting a sequence of Loki attacking a Dark Elf.
I just think the trailer would feature the actors and not their doubles. That being said, it doesn't look like a stunt double to me. It would be kind of unnecessary to have one for a fight sequence like that (from what we can gather from the trailer) since we know TH is capable of doing fight scenes on his own.