LOS ANGELES (AP) -- Has it really been 13 years since a teenager got it on with an apple pie to launch one of Hollywood's most-successful gross-out franchises?
"American Pie" came out of nowhere in the summer of 1999 to become a $100 million smash and continued with 2001's "American Pie 2" and 2003's "American Wedding."
Hollywood figures it's time for another slice. "American Reunion" brings back all the principal cast for the first time since "American Pie 2" for an outrageous reunion weekend.
Here's a look at what the actors and their characters have been up to in the last 13 years.
Jason Biggs as Jim:
Since "American Pie," Biggs starred in Woody Allen's "Anything Else" and had roles in Kevin Smith's "Jersey Girl" and such films as "Saving Silverman," "Prozac Nation" and "Eight Below," while giving the small-screen a try with the TV comedy "Mad Love."
But he's still best known for his role as a horny teen who pleasures himself with a pie.
In "American Reunion," Jim's settled in with Michelle (Alyson Hannigan), whom he married in "American Wedding." Despite having a young son, Jim's still finding himself in compromising sexual situations, this time with the hot 18-year-old who had a crush on him when he babysat her as a child.
"In terms of headspace, I think he's surprised to find himself in really a similar sort of scenario as the first film, and frankly, all the films, which is to say, he is sexually frustrated," Biggs said. "He's like, `You know, haven't I grown up? I've got a wife and a kid. How is this possible?"'
Alyson Hannigan as Michelle:
Already a fan favorite as bookish Willow on "Buffy the Vampire Slayer" when "American Pie" came out, Hannigan has continued her TV success with the comedy "How I Met Your Mother."
In "American Reunion," the adorable band-camp geek of the first "American Pie" has grown into a tender mom, who happens to be married to a guy who keeps stumbling into embarrassing sex-capades.
Hannigan has a pretty good idea of where Michelle might be at if there were another "American Pie" movie 13 years from now.
"She'll probably be worried about her son being a teenager, because he's got half of Jim's genes," Hannigan said. "So maybe she'll be like, looking at boarding schools, military schools, like on a remote island. Where all the girls will be safe."
Seann William Scott as Steve Stifler:
After party-boy Stifler, Scott has kept a busy big-screen career going with "Dude, Where's My Car?", "Road Trip," "The Dukes of Hazzard," "The Rundown" and "Role Models." His latest, the hockey tale "Goon," has just opened.
As "American Reunion" begins, Stifler's the only one of the gang who hasn't gotten on with his life. He's just thrilled for a chance to relive the glory days of keggers and mayhem with his old pals.
"I think Stifler's been waiting for the high school reunion since the day he graduated high school," Scott said. "He doesn't grow up a whole lot. It's just enough where he, in this movie, he becomes a little bit more human.
For him, high school was awesome, and he doesn't really know how he fits in. I don't know how much he's going to change after we see him in this movie. I think that's probably enough for him for the next five years."
Mena Suvari as Heather:
Suvari was an all-American breakout star in 1999, following "American Pie" just months later with her role as Kevin Spacey's teen temptress in "American Beauty." She had a recurring role on TV's "Six Feet Under" and appeared in such movies as "Loser," "Sugar & Spice" and "Beauty Shop."
"American Pie" cast Heather and Oz (Chris Klein) as the perfect high school couple, whose relationship is tested as graduation nears. Thirteen years later, they've gone their separate ways, only to find old feelings resurface.
Suvari reflects on old feelings of her own as she considers the success of "American Pie."
"It was the first studio film I'd ever done," Suvari said. "I was so green I had honestly no idea what it all meant, what I was really doing. I was just excited and thrilled to have a job. I honestly thought that every movie made a hundred-million dollars when it came out. People were like congratulating me. I was just thinking, like, OK, thanks."
Chris Klein as Oz:
Klein has had ups and downs since "American Pie" with such duds as "Rollerball" and "Say It Isn't So." He also co-starred in "We Were Soldiers" and "The United States of Leland."
"American Reunion" has ex-jock Oz living the high life. He's a national sports broadcaster with a gorgeous home in Los Angeles and a babe of a girlfriend -- who starts to pale in Oz's eyes as he gets reacquainted with Heather. "On paper, he's seemingly having it all and kind of living the American dream, or his version of it. But then he sees Heather for the first time in a long time, and the spark is still there and that vibe of first love is still alive in him," Klein said. "Then he gets confused, and as only `American Pie' can do, all hell breaks loose."
Eddie Kaye Thomas as Finch:
Along with roles in "Harold & Kumar Go to White Castle" and its two sequels, Thomas has had steady success on TV with "How to Make it In America," "'Til Death" and a recurring voice role on "American Dad."
Finch returns home for "American Reunion" as the envy of his friends, sharing tales of his globe-trotting, adventurous life -- but concealing a big secret.
Unlike most of his "American Pie" co-stars, Thomas attended his own high school reunion, but he found it had few revelations in the era of online social networking.
"I kind of hang out with all the people I was friends with then, and I had seen all the people I was interested in on Facebook. I know who got fat, and I know who got hot, and I know who was successful, and I know who we thought was going to be successful and wasn't. You lose a lot of the element of surprise," Thomas said.
Tara Reid as Vicky:
Her small but memorable role in Joel and Ethan Coen's "The Big Lebowski" put Reid on the map, and after "American Pie," her credits included "Josie and the Pussycats," "National Lampoon's Van Wilder" and Robert Altman's "Dr. T and the Women."
Like Heather and Oz, Vicky encounters her old flame, Kevin (Thomas Ian Nicholas), in "American Reunion," resurrecting thoughts about her choices.
Reid has not been to a school reunion herself, but the latest sequel gave her a taste of what it's like.
"It did feel like a high school reunion. That many years have gone by, actually a little bit longer, and we all started off together, and we all haven't been together in such a long time," Reid said. "The title of the movie says how it was for us in real life, too."
Thomas Ian Nicholas as Kevin:
The child star of "Rookie of the Year, Nicholas has had his biggest success as an adult with the "American Pie" franchise. Also a musician, he has released two albums, and one of his songs is included on the "American Reunion" soundtrack.
Now married in "American Reunion," Kevin has some troubling moments after he's reunited with Vicky, learning that when the gang gets back together, old habits can reassert themselves.
"It's one of those things where I think it's very true to life," said Nicholas, who showed up on set figuring everyone had changed and grown up. "Then as soon as I got back in the room and everyone was there, without even thinking about it, I fell back into the niche that I had in the group. And everyone else seemed the same. ... That magic and chemistry and intangible thing kind of just returned, and we were right back there."
Shannon Elizabeth as Nadia:
Elizabeth went on to co-star in "Tomcats," "Scary Movie," "13 Ghosts" and "Jay and Silent Bob Strike Back." She also competed on "Dancing With the Stars."
The Czech bombshell of a foreign-exchange student who inexplicably had the hots for Jim in "American Pie," Nadia turns up in "American Reunion" with a substitute guy who's a bit of a Jim clone.
"All I can tell you is, she went back home, she missed Jim and she found another boy that could kind of be in his place. She never quite got over him," Elizabeth said. "She'll probably pick Jim up when he gets divorced."