Intriguing Facts About The Shawshank Redemption
The Number 237 Makes An Appearance

If you're familiar with Stephen King's work, you know that he likes to plant Easter eggs in his writings, connecting them in one way or another. One small detail that he has sprinkled through some of his books is the number 237.
Frank Darabont decided to include this in the film when the guards shout "Open 237!" before questioning Red about where Andy went. The number 237 is also the same number as the room in The Shining, and the amount of change the boys have in Stand By Me.