Big is a 1988 romantic comedy film directed by Penny Marshall and stars Tom Hanks as Josh Baskin, a young boy who makes a wish "to be big" to a magical wishing machine and is then aged to adulthood overnight. The film also stars Elizabeth Perkins, and Robert Loggia and was written by Gary Ross and Anne Spielberg.

Big was the latest, and most successful, of a series of age-changing comedies produced in the late 1980s; the others being: Like Father Like Son (1987), 18 Again! (1988), Vice Versa (1988), the Italian film Da grande (1987).

After being told he is too short for a carnival ride while attempting to impress an older girl (Kimberlee M. Davis), 12-year-old Josh Baskin (David Moscow) from Cliffside Park, New Jersey goes to a wishing machine called Zoltar Speaks, and wishes that he was "big." His wish is granted, but he finds out that the machine is unplugged, and backs away. By the next morning he is shocked to discover that he has been transformed into a 30-year-old man (Tom Hanks), and when he goes back to the wishing machine he finds that the carnival has already left. Fleeing from his mother (Mercedes Ruehl), who thinks he is a strange man who has kidnapped her son, Josh then finds his best friend, Billy Kopecki (Jared Rushton), at the school they both attend; Billy is shocked at first, but Josh convinces him of his identity by singing a secret song that only the two of them know. With Billy's help, he learns that it would take a couple of months to find the Zoltar Speaks machine, so Josh rents a flophouse room in New York City and gets a data entry job at MacMillan Toy Company.

Leroy, Leeroy, LeeRoy, Lee Roy, LeRoy, or Le Roy is often a male given name. It is also used as a surname. The name is derived from Old French. Pronunciation: /ləˈrɔɪ/ lə-ROY