 Tim Burton's 1989 classic Batman starring Michael Keaton is one of the highest-grossing movies of all time. But if you look at a lot of top box office lists, you wouldn't know it. According to box office mojo, Batman made just over 411 million. In a world of billion-dollar blockbusters, that doesn't seem like that much. It doesn't even crack the top 100. But list makers usually forget that our money was actually worth a lot more in 1989 than it is today. Inflation is what happens when the supply of money goes up faster than new goods and services are produced. Economists track it by watching consumer prices over time, and right now, we're experiencing our highest annual inflation rate in 40 years. That means in today's dollars, Batman actually made about 933 million at the box office, which makes it the 57th most successful film of all time. And either way, it's still one of my favorites.