Odin Secretly Hinted At Ragnarok's Hela Twist In 2011's Thor Movie 

screenrant.com -BY ADRIENNE TYLER -Hela was never mentioned before her appearance in Thor: Ragnarok, but her arrival might have been set up in Odin's speech in the first Thor movie.
mots-clés: odin, secretly hinted, ragnarok, hela, twist, 2011, thor, movie, multi-movie news