Allen Greene was Darabont's first agent and good friend. They collaborated together for many years. In the production process of The Shawshank Redemption, Greene put forth a lot of effort to help Darabont. As his agent, Greene lobbied and funded for Darabont. It can be said that this movie would not have been as successful without Allen Greene's contributions.
The film ends with a tribute saying IN MEMORY OF ALLEN GREENE. This person died of AIDS just before this movie release, which made the director feel a sense of regret. The director, Frank Darabont, wanted to include this tribute to honor his friend who worked hard for the film industry, and hoped that he could rest in peace.
Andy Dufresne, the protagonist in The Shawshank Redemption, exhibits extraordinary wisdom. He not only has his own profound geological knowledge, but also practically uses it to design a perfect escape plan. This indicates that Andy has a strong sense of social awareness. He uses his intelligence to slowly rid himself of the crime of murder, and also punishes the prison warden and sergeant who are the real lawbreakers.