Every Marvel fan worth his or her salt knows to keep their eyes peeled for a Stan Lee cameo, whenever a movie adaptation of the comic book legend’s work is made. He’s naturally shown up briefly in every one of Marvel studio’s live-action films so far – including an appearance as “Hugh Hefner” in Iron Man, “Larry King” in Iron Man 2, “Stan the Man” in Thor, and as a fellow who inadvertently drinks Bruce Banner’s blood in The Incredible Hulk.

It all but went without saying that Lee would also be popping up in director Marc Webb’s reboot, The Amazing Spider-Man, seeing how he has made multiple cameos in that franchise as well.

Lee attended the 2011 Dallas Comic Con this past weekend, where he dropped the following tidbit about his Amazing Spider-Man cameo:

“I guarantee the ‘Spider-Man’ one is the funniest one you will ever see…. None of these are my idea, they tell me what to do. So there you go… but this one is genius.”

Without really being asked to elaborate (you gotta love this guy), Lee elaborated on the Amazing Spider-Man scene in question. Needless to say, the following is a MINOR SPOILER!!!!

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“There’s a big battle going on between Spider-Man and The Lizard in a library. I’m the librarian. And I’m stamping books… And I have earphones on and I’m listening to music… And this life-and-death battle is going on behind me… It looks so funny and I look so dumb.”

However, Lee also confirmed the unfortunate news that he won’t be showing up in X-Men: First Class. For his own tongue-in-cheek thoughts on why that is, check out the video (via Youtube user Loss2099) below:

Early word is that Amazing Spider-Man aims to be more of a gritty and down-to-earth portrayal of the iconic webslinger than that of Sam Raimi’s Spider-Man movies – and between the use of artificial webshooters, more contemporary NYC attire for Peter Parker (Andrew Garfield) and Gwen Stacy (Emma Stone), and a mix of CGI web-slinging action with practical wire-work using live actors, it looks as though the film will do just that. Good to hear that the movie won’t completely do away with the light-hearted elements that Raimi’s trilogy tended to overuse at times.

The Amazing Spider-Man swings into theaters on July 3rd, 2012.