Flight of the Navigator

Flight of the Navigator is a 1986 American science-fiction adventure film directed by Randal Kleiser and written by Mark H. Baker, Michael Burton, and Phil Joanou. It stars Joey Cramer as David Freeman, a 12-year-old boy abducted by an alien spaceship who, as an unfortunate side-effect, is transported eight years into the future. It features an early film appearance by Sarah Jessica Parker as Carolyn McAdams, a key character in the future whom David befriends.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.