PRINCETON — Movie-goers had better fasten their seat belts on Halloween night for the showing of “Unearthly Harvest,” a 71-minute feature film written, produced and directed by John Swanson of Princeton.

“Unearthly Harvest” will be shown at 9:30 p.m. Oct. 31 at the Apollo Theater in Princeton, with movie-goers encouraged to come dressed in costumes. Drawings will be held for posters and T-shirts give-away. There is no ticket price charged for the showing, only a voluntary donation option, with all proceeds going to benefit the Bureau County Fair.

Swanson said there will also be a preview promotion of “Unearthly Harvest” shown during the Nightmare on Fairgrounds Road event, held each weekend in October at the Bureau County Fairgrounds in Princeton.