FILM FESTIVAL RETURNS: “Unearth” will be screened at the Princeton Garden Theatre as part of the Princeton Environmental Film Festival.

The Princeton Environmental Film Festival opens Friday, April 4, and runs through Sunday, April 13. A selection of films will be screened both in person in the library’s Community Room and virtually via the Eventive platform. Some will be shown in the Community Room only with others available to stream online only.

There will also be an off-site screening at the Princeton Garden Theatre on Sunday, April 6 and a shadow puppet show Saturday, April 5, at the Arts Council of Princeton.

Highlights of the festival include Flow, winner of the Academy Award for Best Animated Feature; Birdsafe, highlighting efforts to create a bird-safe campus at Princeton University; Birdsong, following ornithologist Sean Ronayne as he attempts to record the sound of each of the nearly 200 bird species in Ireland; Seaweed Stories, exploring the wonders of seaweed; Chasing Time, focused on melting glaciers in Iceland; and Unearth, set against the urgent demand for metals and minerals to fight climate change in Bristol Bay, Alaska.

Screenings are followed by Q&A sessions with filmmakers.

On Saturday, April 5, “The Three Little Pigs,” a shadow puppet show with live music, will be presented in partnership with the Arts Council of Princeton as part of PEFF. The performance for all ages features puppets crafted from recycled materials and is performed by the Garden of Shadows. It will take place at 1 p.m. at the Arts Council of Princeton, 102 Witherspoon Street.

The full lineup of PEFF films and events, including screening schedule, Q&A sessions with filmmakers, and instructions for using the Eventive platform to stream films, can be found at princetonlibrary.org/peff.