X2: X-Men United

Released in 2000, X-Men was a brilliant superhero movie – it had to be; it was the movie that kicked off a franchise that is still going strong today, sixteen years later – but it was superseded in quality by its fantastic 2003 sequel, X2: X-Men United.

The introduction of great new characters like Nightcrawler and William Stryker played no small part in making X2 such a great movie, and the fact that audiences had already come to love the main cast in the first movie helped them relate to their plight to an even greater degree.

It included some fantastic scenes – such as Nightcrawler’s attack on the President of the United States – and the special effects were much better than in the first movie. It was simply a better production all around.

Next, we have the final X-Men movie in this list.