This year's summer movie season is a dream for comic book fans, with two superhero movies already debuting in theaters and two more yet to come.

Adaptations of Marvel Comics classics in "Thor" and "X-Men: First Class" have already made their mark, and a DC Comics hero will come to life this weekend with Ryan Reynolds starring as "Green Lantern."

And moviegoers can still look forward to the July 22 premiere of "Captain America: The First Avenger."

As all these movies will find out, comic book fans are a very discriminating lot when it comes to the adaptations of their favorite superhero tales for the big screen. Especially in the age of the Internet, the process of making a superhero movie is one heavily scrutinized from the minute a project is announced, and will oddly be forgiven IF it works.

If it earns the distinction of becoming a classic, its standards will become those upon which all other superhero films will be judged. Here are five of those films.

Who's your friendly neighborhood webslinger?