X-Men may have been a very early entry in Marvel's movie ventures, but even after 25 years, the movie is surprisingly more of a success than many of the latest billion-dollar blockbusters. While DC was hitting home runs with its films from the late 1970s, and it continued to lead the way into the 1980s, 1990s, and 2000s, Marvel has since taken the lead by a significant margin. Just in terms of sheer numbers, over the course of the MCU alone, which only began releasing movies in 2008, Marvel Studios has racked up well over $31 billion (via The Numbers). That's nearly a billion per movie.