Movie studio DreamWorks Animation is set to make a film about a Y-fronted hero - Captain Underpants.
Deadline reported that the studio, famed for the likes of Shrek and the forthcoming Puss In Boots, with Antonio Banderas and Salma Hayek, has bought the rights from author Dav Pilkey, who has sold 14 million books about the kids' adventures.
Eight series of Captain Underpants have been published since 1997, revolving around primary school practical jokers and trouble makers Harold and George.
The boys hypnotise their headmaster, who hates children and forbids them from using their imagination, into becoming Captain Underpants, a nice superhero, who doesn't have any special powers.
The children help him when he gets into scrapes with enemies, but he has no recollection of being Captain Underpants when he returns to normal.
Until now, the US author has resisted selling the rights to his kids books, but DreamWorks is reported to have won the rights in an auction.
DreamWorks Animation's chief creative officer Bill Damaschke told Deadline: "We're all big fans. There's a great combination of kid and adult humour, and George and Harold are these terrific mischievous characters. And we felt that hypnotising the principal is one of those great ideas..."