Do you research film trivia after you've seen a film? I do. Right after seeing a movie, I jump on wikipedia and look for the budget. It's right there under the poster, with some release information.
$65 million. $32 million. $14 million.
But here's a question-- do you think that is the actual budget? Do you think that is really what the film cost? If you didn't already know, then I'm sorry to be the one to break it to you: that number is complete garbage.