For a film to succeed, it must be able to transcend cultural barriers, have good word of mouth, and have a hook to get people into the chairs.
STID got something right at any rate, since about half of its total lifetime grosses are domestic and the other half foreign. And the movie's beaten its prodution budget in both foreign and domestic sales. (Box office mojo
) I don't understand the cost structure of the distribution systems well enough to be able to judge when the movie makes a net profit, though.