A modern-day cyber fairy tale might go something like this:

Two teenagers don't know what to do with their free time after school (they live in Hilo, after all). But they're good kids, so they decide to make videos to entertain their friends.

A bit of laziness (they didn't want to go over to a friend's house to share the video) inspires them to post one of these comedic sketches on the Internet.

In time, people start watching. Millions of people.

One day, a 10-year-old kid in California introduces his movie producer father to the YouTube duo. The producer decides to make a feature film, and the kids are on their way to becoming movie stars.

Ryan Higa and Sean Fujiyoshi are living that dream, and indeed already are famous enough to get stopped in mainland airports and deal with girls taking clandestine cell-phone photos of them.

Yesterday afternoon, their movie premiered at Restaurant Row, and well over 100 fans arrived for photo ops and autographs.

“;Ryan and Sean's Not So Excellent Adventure”; shows in Hilo today, then moves to California, where the premiere in the Bay Area has sold out.

Since 2005, these two kids have made 55 short videos and posted them on YouTube, garnering 150 million views. Their bizarre but humorous take on topics such as “;How to Be a Ninja,”; “;How to Be Emo”; and “;How to Be a Nerd”; have legions of followers.

Often, Sean plays a very abused teen (the family's exercise ball is often the weapon of choice) who needs help defending himself, and Ryan is there to offer instruction. The presentation is edgy and silly enough to appeal to preteens and teenagers, yet mercifully devoid of inappropriate references, despite the bathroom humor that inevitably slips in. Sean says they get ideas from random places - sometimes just from watching television.

Ryan, who recently started his freshman year at the University of Nevada-Las Vegas, says living in Hilo started it all. “;There's not much to do other than go watch a movie. Pretty much boredom kicked it off for us, and our parents didn't mind because it kept us out of trouble.”;

They created the videos to share with friends - nothing more. One day, when one of those friends couldn't come over and Ryan and Sean didn't feel like going out, they posted a lip-sync video on the Internet. Later, they saw that it received 100 hits. “;How did it get so many views?”; Ryan recalls wondering. “;Did that person click on it 100 times?”;

Demand for their unique style grew. It was the ninja video that first earned 1 million views. At first, they celebrated, says Ryan, “;but now every one gets at least a million.”;

This is what independent movie producer Derek Zemrak noticed when his 10-year-old son came to him asking to watch the Ryan and Sean videos because all of his friends in Los Angeles were talking about it.

“;I immediately saw the raw talent,”; says Zemrak, a producer/writer/director with a background in horror films. He told his business partner at Zemrak Pirkle Productions that these kids were going somewhere, and if their production company didn't make a movie with them, someone else would.

“;As a producer, you're always looking to see what the next thing will be,”; he said. “;There's an audience built in. This is where kids are getting their entertainment now. They're logging onto YouTube while they're supposedly doing their homework.”;

Zemrak tracked down Ryan and Sean through their MySpace pages and left messages introducing himself.

“;I really thought it was fake,”; Sean says of the initial contact.

Finally, Zemrak talked to the parents, sent a script treatment and explained the movie business. When they reached an agreement (for the record, the non-union boys did better than scale), Ryan and Sean spent three or four months working on a script with Zemrak's writer. “;We wanted to keep them who they are,”; Zemrak says. “;We didn't want to take Ryan and Sean and put them in 'Shakespeare in Love.'”;

In another move that differs from traditional Hollywood, Zemrak's company set up a social network to ask people which cities they'd like “;Ryan and Sean's Not So Excellent Adventure”; to play - something akin to theatrical release on demand. It took just over two months for 30,000 kids to sign up. “;The whole industry doesn't understand this movie,”; Zemrak says. “;It's a new phenomenon.”;

The movie, directed by veteran actor Richard Van Vleet, is about a producer losing his job on the studio lot. He's given 30 days to save his career. Then he stumbles across Ryan and Sean on the Internet and puts them through the paces to create a movie, spoofing buddy flicks and reality shows along the way.

Though Ryan admits that the movie-making experience for several weeks in San Francisco was “;very tiring”; and “;much harder”; than he anticipated, Zemrak says the young men were “;so natural when they got out here.”;

Of their growing fame, however, Ryan remains somewhat ambivalent. “;It's kind of surprising,”; he says simply. But he expresses a bit more enthusiasm for the movie itself. “;It's kind of unbelievable, especially since we're from Hilo, and not much big things come from Hilo that I'm aware of.”;