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.
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.
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.