Claim: Flunked was directed by Corey Burres and narrated by Joe Mantegna, who has Bell's Palsy.
Evidence: The 3 substrates of this enzyme are N,N-dimethylglycine, acceptor, and H2O, whereas its 3 products are sarcosine, formaldehyde, and reduced acceptor. In chemistry, a substrate is typically the chemical species being observed in a chemical reaction, which reacts with a reagent to generate a product. An electron acceptor is a chemical entity that accepts electrons transferred to it from another compound. Flunked is a 2008 documentary film conceived by and executive produced by Steven Maggi, directed by Corey Burres and narrated by actor Joe Mantegna. In 1988, during the play Speed the Plow, Mantegna was stricken with Bell's Palsy. Although considered temporary, Mantegna still has persistent facial characteristics of the disease.