Flop? I say to thee, nay!
Check out http://www.boxofficemojo.com/news/?id=3163.
Thor - #1 again. According to this Box Office Mojo article, Thor's numbers held better in the second weekend than Iron Man 2 and X:Men Origins: Wolverine, among others. A 10 day total of $119.3 million is certainly no flop!