4. Batman Begins
I know you're probably thinking that a reboot doesn't belong on a list of films that shouldn't be rebooted. Please just hold on I'm going to attempt to make a point here. The odds that someone will make Batman films sometime in the future that are better than the Nolan films are pretty slim. It is without a doubt possible that someone could and may very well do it but it would be a very hard task. The odds that someone will make a better Batman origin film are almost nonexistent. Batman Begins turned the film world upside down with its real world interpretation of Batman and the in depth origin story. Never before had anyone attempted to get down to the very core of what makes Bruce Wayne want to be Batman on film. Christopher Nolan managed to do it in a way that gave everyone a new appreciation for the character. Nolan also succeeded in keeping the viewers attention. Quite often origin stories can be very boring but this film managed to be the exception. The story here unfolds at a perfect pace and still leaves you with plenty of time in the film to see Bruce jumping across rooftops using his Batman voice. Batman movies will without a doubt be rebooted until the end of time. Like I said earlier it's possible that someone will make a better Batman movie at some point but probably not a better Batman origin film.