Blood Poisoning
Getting bitten by angry lions with sheer ferocity can leave you with scars that last a lifetime; but Marshall contracted something else from the bites too: blood poisoning. The things got so out of hand that he was within 10 hours of coma or death.
Photo by Sanderson, Eddie/Mirrorpix/Getty Images
Filming had to be suspended, and the periodic suspensions continued on and off for the next 5 years. Rearing predatory cats and making them act according to your needs is a full-time job. Marshall and Hedren were entirely owned by the cats.