Producer Jerry Weintraub and director Andrew Fleming have already solved one “Nancy Drew” mystery –whether there’ll be a sequel to this summer’s feature adaptation — and the answer is yes, with Emma Roberts again set to star as the famous teenage sleuth.

The trio also announced that they are teaming on “Rodeo Girl,” another family-friendly Warner Bros. pic.

Fleming (“The In-Laws,” “Dick”) wrote and will direct “Rodeo Girl.” Roberts will play a debutante equestrian who falls for a cowboy and tries to win him over by entering a rodeo competition.

Warners opens “Nancy Drew” on June 15, reviving the franchise after a decades-long absence from the bigscreen. Pic, directed by Fleming, has the teen detective accompanying her father on a business trip to Los Angeles, where she happens upon clues to a murder mystery involving a movie star.

While movie’s set in the present, Weintraub told Daily Variety that in terms of the heroine’s character and outlook on life, he and Fleming have remained true to the Nancy Drew mystery book series, in print continuously since the 1930s.

“She’s not a hip kid,” Weintraub said. “She’s right out of a Norman Rockwell painting.”

Film also stars tweens Max Thieriot, Josh Flitter, Amy Bruckner and Daniella Monet. Starring on the adult side are Rachael Leigh Cook and Tate Donovan, who plays Nancy’s father, Carson Drew.

Weintraub said he set “Nancy Drew” into motion after studying the release schedule, and particularly this summer’s sked.

“You get to this place when all of the tentpoles have opened, but there’s nothing for girls to go to. I wanted to make something that families to go to, or mothers and their daughters,” Weintraub said.

(One of this summer’s tentpoles is “Ocean’s Thirteen,” which he produced for Warner Bros.)

Weintraub is no stranger to family franchises, having produced “The Karate Kid” pics.

Fleming is repped by Creative Artists Agency, Roberts by Sweeney Management.