Superman Returns didn't flop; it made $120 million. It didn't do as well as everyone would have liked, but it still did well.
Are you talking about profit? Cause no one ever knows how much profit a movie makes since there's so many costs to factor in.
If you're talking about box office then it made $200 million domestic and about $400 million worldwide. Don't know where 120 came from.
And no that is not a flop. Like I said, it did better than Batman Begins.
The budget was $270 million and it made $200 million in the US. HOWEVER, it also made $191 million overseas, which brands its grand total to $391 million. $391 minus $270 equals $121. The movie had $120 million.
It was a flop in the US, but not a flop worldwide. And when it allll comes down to it, making money is what the studios wan the most. Which it did.