Kevin Costner, who starred as Ray Kinsella in the 1989 film, made the trip to Dyersville, Iowa, as he led the players through the cornfield and onto the field. The pregame intro was a tribute to an iconic scene from the film.
"Is this heaven?" Costner asked. "Yes, it is."
Jose Abreu hit a shot over the fence and into the cornfield for the game's first homer.
The 8,000-capacity temporary ballpark is located next to the "Field of Dreams" movie site.
Kevin Costner in awe as he visits MLB's Field of Dreams
Kevin Costner visits the Field of Dreams ahead of Thursday's inaugural MLB game in Iowa.