Percy Vs Goliath follows the true story of a small-town farmer who is sued by Monsanto for allegedly using their patented seeds

Christopher Walken's newest film is tackling an industry giant.

In a PEOPLE exclusive look at the first trailer for Percy Vs Goliath, the 77-year-old actor stars as Percy Schmeiser in the real-life story of a small-town farmer who is sued by the Monsanto Company for allegedly using its patented seeds.