The Shawshank Redemption was a sleeper hit. It didn't make much stir when it was released in theaters in 1994, but on home video and TV, it grew to be a cult classic, and a generation of viewers love it. As such, we didn't have a lot of trivia articles about it on the internet. We now get tidbits of trivia, and a breakdown of the film's special effects. What? You didn't know The Shawshank Redemption, a prison period drama, had special effects? Yes, and before CGI became so ubiquitous they had to get creative for them. See what went into the filming of The Shawshank Redemption, including a small detail that bugged the director for ten years before it was corrected, in this video.