There are hallway walk-and-talks, and gym locker showdowns, and ruminations about romance, to be sure, but also weightier stuff, too: stories of living with cystic fibrosis, about racial tensions, about the discovery of a grandfather's World War II diary.

Now in its fourth year, the Greenfield Youth Film Festival is an ambitious undertaking that brings together students form 26 area high schools – from Berks, Bucks, Chester, Delaware, Montgomery and Philadelphia counties – offering equipment, technical instruction and encouragement as they wield tripods and lights, cameras and mikes,  putting their dreams and dilemmas,  ideas and images on screen.

On Tuesday, May 1, from 7pm to 9pm at the Keswick Theater, in Glenside, the results of this year's competition – sponsored by the Greenfield Foundation, in partnership with the School District of Upper Dublin – will be screened for students, families and the public at large. Admission is free. Festival organizers cull from around 200 entries, and will hand out honors in three categories -- fiction narrative, documentaries and experimental. There are also awards for actor and actress, for director, cinematography, score, animation, screenwriting, editing, sound design, visual effects and "best use of a teacher in a movie."

Instructor/mentors for this year's fest include R. Eric Thomas, a stand-up dramedian, storyteller, and playwright, and Jon Foy, musician and filmmaker, and winner of a Sundance award for his documentary feature, Resurrect Dead: The Mystery of the Toynbee Tiles.

For info: Go to Greenfield Youth Film Festival, or call the Keswick Theater, (215) 572-7650.