G-Star School For The Arts students got a Tony-winning boost Wednesday, when actor Barry Bostwick joined the cast of a full-length feature film being made in Palm Beach County, the first such project done by a crew from the West Palm Beach school.

Actor Barry Bostwick and actress Natalie Salins go through a scene while director Joe Reilly, center, listens in. Photo by Taylor Jones/The Post

“The purpose of this is education, and an experience (the kids) can use for their whole careers,” said Bostwick, best known as the dim-bulb mayor on TV’s Spin City and his Tony-winning role in Broadway’s The Robber Bridegroom.

On Wednesday, he began a week of shooting on It’s A Dog-Gone Tale: Destiny’s Stand, which began filming about two weeks ago and wraps up June 30.

The movie, about a group of kids, a beleaguered animal shelter threatened by Bostwick’s character, and a brave, brilliant dog named Destiny, will use about 100 G-Star students.

It will film on the school’s Congress Avenue campus, Palm Beach International Airport, and a private home in west Boca Raton.

Its professional crew includes director Joe Reilly, who produced the G-Star-made The Prince and The Pauper with Disney teen stars Dylan and Cole Sprouse, and writers Bobby Moresco (Crash) and Ron Palillo, famous for playing Sweathog Arnold Horshack on Welcome Back Kotter.

The student crew is working in every conceivable position on the film, as grips, actors, editors and script supervisors.

Many of them skipped going to camp and taking paying jobs to work long days, tote equipment and sweat in the sun during many outdoor shots.

“My mom said it was either this or surf camp. And I really wanted to go to surf camp,” said Ashlee Hudak, 15, a student script supervisor and actor from West Palm Beach.

“But I’m glad I did this.”