I'm not entirely sure who this Ben Campbell specifically is in the 'Ben Campbell 21 True Story' without more context. It could be an individual involved in an event or a story that's not widely known to me.
The Field of Dreams is not based on actual events. It's a work of fiction that combines elements of drama and fantasy to tell a compelling story. The characters and plot are made up to entertain and engage the audience.
Ben Hur is not a factual account. It's a piece of fiction that has captured the imagination of many. The story was crafted to entertain and tell a compelling narrative rather than being based on real events.