Overview
Good Boy! is a 2003 American science fiction comedy film directed by John Hoffman, based on the book Dogs from Outer Space by Zeke Richardson; Hoffman and Richardson collaborated on the screen story, while Hoffman wrote the screenplay. The film stars Liam Aiken as Owen Baker, as well as the voices of Matthew Broderick, Delta Burke, Donald Faison, Brittany Murphy, Carl Reiner, Vanessa Redgrave, and Cheech Marin as the abundant dog characters in the film.
Plot
Owen Baker (Liam Aiken) is a 12-year-old who has been working as the neighborhood dog-walker so he can earn the privilege of getting a dog of his own. Owen's hard work pays off when his parents, Mr. and Mrs. Baker (Kevin Nealon and Molly Shannon), let Owen adopt a scruffy Border Terrier that he names Hubble (voice of Matthew Broderick). Owen has little time to make lasting friends, due to his parents' renovation and reselling of houses, so he hopes Hubble will be his best friend.
Owen does have a friend named Connie Flemming (Brittany Moldowan), a girl his age who lives in the neighborhood, but he is also bullied by two boys named Frankie (Hunter Elliott) and Fred (Mikhael Speidel). Soon after the adoption of Hubble, Owen finds out that his new abnormally intelligent dog actually came from outer space. Owen wakes up the next morning to discover that he can now understand every word Hubble says—including the ominous phrase: "Take me to your leaders."
Owen learns that dogs came to Earth thousands of years ago to colonize and dominate the planet. Hubble, who is really named Canid 3942, has been sent by the powerful Greater Dane (voice of Vanessa Redgrave) on a mission from the Dog Star Sirius 7 to make sure dogs have fulfilled this destiny.
From Wikipedia (CC BY-SA 4.0).