PORTSMOUTH — The dog days of summer (and winter, fall and spring) are taking over The Music Hall, 28 Chestnut St., for the NY Dog Film Festival at 7 p.m. Friday.

Heart-warming short films from across the globe play out on the big screen.

The lineup will include animated, documentary and narrative works. Among them is “Esther — Saving Castaways,” about a prison program for unwanted dogs trained by inmates; “Imperfect Adventure,” about Mallory Paige’s trip across North America in a motorcycle with her dog in the sidecar; “Ooh la la,” a witty animation inspired by the French poodle; and “It’s a Potcake Life,” about the indigenous stray dogs of the Bahamas.

The festival’s founder and director, Tracie Hotchner, is a pet wellness advocate who wrote “The Dog Bible: Everything Your Dog Wants You to Know” and “The Cat Bible: Everything Your Cat Expects You to Know.” She hosts the NPR show “Dog Talk (and Kitties, Too) from the NPR station Peconic Public Broadcasting from the Hamptons in New York, and founded the Radio Pet Lady Network with advice for dog and cat owners from pet experts and veterinarians.

The New York Dog Film Festival, which benefits animal welfare groups, is meant to “inspire, educate and entertain.” Hotchner says the only tears audiences will shed are tears of joy for happy endings.

She finds “Imperfect Adventure” a particularly moving story.

“The story is amazing,” Hotchner said. “It’s all in voice-over, about a woman who was afraid to be alone, to travel, had never done anything mechanical or ridden a bike. She ... set out across America for a camping adventure with her dog (to whom the film was dedicated.)

Tickets to the NY Dog Film Festival are $15.

For more information, call the box office at 436-2400 or visit themusichall.org.