Magic Mike XXL made $100 million worldwide on a $14 million budget. I'm not sure that's considered a flop, but I don't know hollywood accounting.
Also, for what it's worth, I asked my girlfriend tonight if she knew who Gambit was. Even with me showing her pictures she had no idea. I think outside of the nerd community, he's a pretty obscure character that no one would care to see unless he's played be a big name star. Given that it is, again, beyond stupid that Fox thinks a Gambit movie is a $150 million dollar blockbuster. I can't wrap my mind around that.