Thor star Chris Hemsworth was the latest Hollywood celebrity to stop by Spanish TV show El Hormiguero during a publicity stop in Madrid yesterday. He graciously went along with the show's crazy antics, snacking on a brightly colored snack before facing off against one of the show's cuddly ant puppets. His superhero flick is already topping the box office overseas, and audiences in the states can see Chris and his costar Natalie Portman on May 6 when their Marvel remake opens stateside. He's been handling the brunt of the promotional work solo while pregnant Natalie stays close to home in NYC prepping for the arrival of her first baby. Thor is the first of many superhero films opening soon with Green Lantern, X-Men: First Class, and Captain America due out in the upcoming months. Chris and his thunderous hammer will be in LA next week for the May 2 premiere, but first he'll have to slay the competition in the PopSugar 100, where he's nominated for Favorite Import and Hottest Rising Star.