The Story of Louis Pasteur is a 1936 American black-and-white biographical film from Warner Bros., produced by Henry Blanke, directed by William Dieterle, that stars Paul Muni as the renowned scientist who developed major advances in microbiology, which revolutionized agriculture and medicine.

The film's screenplay—which tells a highly fictionalized version of Pasteur’s life—was written by Pierre Collings and Sheridan Gibney, and Edward Chodorov (uncredited).

France's medical academy dismisses Pasteur—notably his most vocal critic, Dr. Charbonnet (Fritz Leiber Sr.)—as a crank whose recommendations are tantamount to witchcraft.

They send representatives who realize that, after working with a small group of loyal researchers, Pasteur developed an anthrax vaccine.

The medical academy still opposes him and says Arbois must be free of anthrax, so the government buys land there and invites sheep farmers to use it.

He spreads the disease from one animal to another by injection but cannot detect any microbe being transferred (viruses had not been discovered), and the method he used to create the anthrax vaccine fails.

But before his experiments conclude, a frantic mother begs him to try his untested treatment on her son (Dickie Moore), who a rabid dog has bitten.

Despite fearing imprisonment or even execution for Practicing without a license to provide medical treatment, Pasteur decides he must try to save the child.

Writing for The Spectator in 1936, Graham Greene gave the film a good review, describing it as "an honest, interesting and well-made picture".