The movie you are thinking of is "A Christmas Story," which is a classic holiday film from 1983. It tells the story of a boy named Ralphie who dreams of getting a Red Ryder BB gun for Christmas, but his mother has other ideas. The movie is known for its memorable characters and scenes, including the leg lamp that Ralphie's father wins in a contest. The leg lamp has become a popular symbol of the movie and is often associated with the holiday season.