From the reality behind how tall Michael Clarke Duncan really is to the mice who played Mr. Jingles, there are a lot of interesting details about the making of The Green Mile. Years after Frank Darabont made the acclaimed The Shawshank Redemption, he made another Stephen King adaptation set in a prison. However, The Green Mile is a much different movie as it stars Tom Hanks as a prison guard working at a death row facility in the 1930s who encounters an unusual prisoner named John Coffey (Michael Clarke Duncan).