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Super-dedicated Twilight fans are currently camped out for tonight's last premiere of the super-successful saga, where stars Peter Facinelli and Jackson Rathbone showed their appreciation Sunday by making appearances for all the "Twihards" that have made the franchise a worldwide phenomenon.

"After four years and five movies, it's more like a family now -- I'm gonna miss these guys not only on-set, but off-camera," Peter tells ET about the estimated 2,000 screaming fans. "All these fans camping out every year -- they really made this franchise what it was. It's a two way street, this relationship. We love them just as much as they love these movies."

Pics: A Look Back at the 'Breaking Dawn' Premiere

"The craziness just keeps escalating," Jackson smiles. "Year after year, we've been showing up to these events and there's just been a lot of screaming, a lot of hollering going on, and people having a good time."

Summit Entertainment organized a "camp" for Twilight fans, where according to Andrea Newkirk, who's been camped out since Thursday, the overall vibe has been fantastic (despite the cold) due to events such as a meet and greet with author Stephenie Meyer as well as screenings of the last four Twilight films.

"We are all here for the same thing -- to be able to sit together and to watch the movies together, it's a lot of fun. It's just a big camp out, that's really what it is," she explains.

Video: Rob, Kristen and Taylor on the End of 'Twilight'

Check out the video for an interview with a rare male Twilight fan camped out with his wife (who he calls "his Bella"), and Jackson Rathbone on the craziest fan request ever.

The Twilight Saga: Breaking Dawn - Part 2's highly anticipated premiere happens tonight at Los Angeles' Nokia Theatre, with the film hitting theaters this Friday.