According to Comic Book Movie on Monday, director of "Guardians of the Galaxy" James Gunn made his appearance at the 2014 Atlanta Dragon Con and spoke of a missing cameo appearance of Stan Lee in his film. Apparently, Lee's cameo has him in an exhibit in the Collector's museum along with "Thor: The Dark World's" Dark Elf, Cosmo the Russian astronaut dog, and Howard the Duck.
The action sequence with Lee would have entailed Groot looking at the Marvel comics creator as he would extend his middle finger outward. Such a scene would have been rather fun. But Disney didn't want that to be in the film likely for obvious reasons.
Also, in addition to the news about the unused Lee cameo was the the chatter of Carol Danvers, or Ms. Marvel, of wether or not she'll be in the "Guardians of the Galaxy" line up of films. Gunn expressly stated no such Earthling would appear in said projects as he's attempting to keep it more Star-Lord focused. He did agree that an additional super hero female character could wind up in "Avengers" film. Likely "Avengers: Age of Ultron." The likelihood of this happening would be sooner as opposed to later.
Gunn had appeared with others using his directing skills to teach cosplayers how to "Groot", signed autographs, and take pictures with the fans. Most notably was a rather accurate representation of Groot in cosplay as Lee Hurley of HurleyFX. Also, Gunn appeared with four Gamoras and a single Ronan the Accuser.
"Guardians of the Galaxy" surpassed "Captain America: The Winter Soldier" as the number one hit move at the domestic box office for 2014.