The Blue Yonder is a 1985 American science fiction adventure film directed by Mark Rosman and starring Peter Coyote, Huckleberry Fox, Art Carney, Dennis Lipscomb, and Joe Flood.
He doesn't notice a flyball headed his way, and it bounces off his glove resulting in an error and a celebratory win for the opposing team.
Later, Jonathan heads to the home of Henry Coogan, a longtime family friend and once best-friend of his late grandfather Max Knickerbocker.
Henry proceeds to gift Jonathan an unpainted toy model of a biplane, similar in style to the type his grandfather use to fly in the 1920s.
That evening, while Jonathan is having dinner at his home, his father explains that his grandfather was a idealistic dreamer who died in a crazy exploit, and that Henry makes him out to be something more than he was.
Henry makes a vow that he will get the world to remember the name Max Knickerbocker despite the failed transatlantic flight attempt.
Henry also explains that this "window in time" would only be open temporarily, and the traveler would need to return to the future before it closes or they would vanish forever.
Jonathan wakes up the early the next day and goes through a window in Max's house to activate the time machine using a skeleton key he found hanging nearby.
Jonathan buys a few candy bars and a newspaper with a dollar bill from the future, but leaves before the vendor notices.
With only seconds to spare, Jonathan activates the time machine and disappears with Finch and the police captain barely missing him.
Inspired by this new knowledge, Jonathan picks up the ball and lobs it into the air with a renewed force he was unable to achieve in the beginning of the movie.
As part of The Disney Sunday Movie, the film was renamed Time Flyer and had footage that was cut in the VHS releases.
The Los Angeles Times also gave the movie a positive review, stating that while it lacked a big budget, "writer-director Mark Rosman effectively extracts charm from the simplicity", and praising the portrayal of the grandfather/grandson relationship.