Victoria Campbell crossed the Dominican-Republic border into Haiti disguised as a nun five days after a devastating earthquake hit in January 2010.

Ms. Campbell grew up on the Vineyard and was fresh out of film school at the time. While she didn’t have any medical training, she was determined to help nurses and doctors save lives. She said she was greeted eagerly and quickly trained by the medical staff.

While stitching up wounds and assisting in surgeries, she met Gaston Jean Edy, a voodoo priest who traveled many miles from his neighborhood to seek aid. A few days later, Ms. Campbell packed her camera and went to help. She didn’t know it then, but she had just met the subject of her documentary Monsieur Le Président. The film will be screened at the West Tisbury Library on July 10 at 3:30 p.m. Ms. Campbell will be on hand to discuss the film and answer questions.

The film premiered in 2014, but Ms. Campbell said its relevance continues today. She described Haiti to be resilient when faced with deep poverty, gun violence, natural disasters and corrupt leadership.

“I think [Haiti] is the future vision of where we’re all headed,” Ms. Campbell said. “We should really learn from their resilience and how they’re operating.... I really wanted to show what a real neighborhood is like when a horrific disaster like an earthquake happens, and how people survive after that.”

Ms. Campbell lived in Haiti for a couple years, following Mr. Jean Edy closely. She said she witnessed a shift in his benevolent nature as donation money came flowing in. Two years after the earthquake, Mr. Jean Edy disappeared and so did the money.

The final scenes in the documentary show Ms. Campbell returning to Haiti to confront Mr. Jean Edy. She rode alone on a motorcycle to his house and risked her safety to discover why he had stolen from his people.

“It’s a story of a friendship that shifts and changes, and a betrayal that’s quite human,” Ms. Campbell said.