“It’s not nice to fool Mother Nature.”

If you’re old enough to remember this ad campaign, you’re probably also old enough to remember when people threw trash out the car window and kids were allowed to follow chemical trucks spraying for mosquitos. For younger readers, this alternative universe was called the ’70s.

Flash forward to today, where the balance between ecosystem and commerce is a subject of fierce debate. But what if instead of trying to balance nature and commerce, we looked to Mother Nature as a model of organizational effectiveness?

My new favorite movie is “The Biggest Little Farm,” a feel-good film that chronicles the eight-year quest of two idealists, Molly and John Chester, as they trade city living for 200 acres of barren farmland and a dream to harvest in harmony with nature.

I’m recommending the movie to my executive coaching clients because it’s a lesson in overcoming setbacks and the interconnectedness of everything. ‘The Biggest Little Farm’ provides three big insights for leaders:

1. Verbalize your vision and share it often.

Molly Chester’s vision to run a traditional foods farm was rooted in her training as a natural foods chef. Her passion inspired (persuaded) her husband, filmmaker John Chester, to help find investors and purchase Apricot Lane Farms, an endeavor most of their friends thought was crazy.

It’s an intimate look inside the lives of two young people who start out naively, yet, as BiggestLittleFarmmovie.com says, “Through dogged perseverance and embracing the opportunity provided by nature’s conflicts, the Chesters unlock and uncover a biodiverse design for living that exists far beyond their farm, its seasons, and our wildest imagination.”

Without a vision, the Chesters would have been simply scratching away at the dirt trying to make ends meet. Molly’s vision kept them going, and inspired others to join their cause. Verbalizing your dream keeps it real.

2. Find good mentors and invite them to participate.

After buying 200 acres of neglected land in Moon Park California, the Chesters ask farming guru and biodynamic consultant Alan York to help them. He challenged them: Instead of planting one or two crops, as most farms do, York recommended diverse orchards with more than 75 types of fruit, and cover crops to keep soil in place.

As a result, the soil became richer, and when heavy rains hit, Apricot Lane didn’t lose mountains of dirt to runoff as other farmers did. When you find people who have studied your field, listen to them. You’ll save yourself years of frustration.

3. Don’t cave on principles; get creative with resources instead.

Watching pests destroy the Chester family’s hard won progress is heartbreaking. During a snail invasion John asks Molly, “I don’t supposed we can use chemicals?” She responds. “No, we’re not.” Lesser leaders would have doused the snails in pesticides.

Instead, the Chesters solve the problem by cross training other animals, no joke. I don’t want to ruin the surprise, but ducks are involved, it’s ecofriendly and it’s hilarious.

I never dreamed I’d cry over a farm movie, but I did, and so did my big strong husband, who says, “I loved the transformation. Watching them turn into something almost like a dust bowl, into something so lush, beautiful and bountiful, was stunning.”

It’s not surprising that the film is getting Oscar buzz.

Mother Nature shows us, everything is connected. Watch the “Biggest Little Farm” and ask yourself: Can I grow my ecosystem?

Lisa McLeod is the author of the best-sellers “Selling with Noble Purpose” and “Leading with Noble Purpose.”