10 Things You Didn't Know About Cape Fear

10. De Niro Underwent A Full Transformation For The Role

Ever committed to his movie roles throughout the years, De Niro's stint as Max Cady saw him go into gym overload to get truly into the headspace of the creepy criminal, designing his body to better reflect the character's commitment to learning to read, write, and get really freaking buff in the 14 years he was imprisoned.

Spending up to three hours a day, six days a week training to define himself before filming and then five hours a day once they started, it's clear that his unstoppable #gymsesh paid off from the shots that made it to the film. Apparently, he got so pumped as Cady that the tattoos the artists applied had to be increased in size by 10% over the course of shooting to make up for his giant mass.

That's as well as paying a dentist $5,000 to grind down his teeth and $20,000 to fix them again. Do not test this man.