Rain Man (1988)

Rain Man is a 1988 drama film written by Barry Morrow and Ronald Bass and directed by Barry Levinson. It tells the story of an abrasive and selfish yuppie, Charlie Babbitt, who discovers that his estranged father has died and bequeathed all of his multimillion-dollar estate to his other son, Raymond, a man with high functioning autism of whose existence Charlie was unaware.
The film stars Tom Cruise as Charlie Babbitt, Dustin Hoffman as Raymond Babbitt, and Valeria Golino as Charlie's girlfriend, Susanna. Morrow created the character of Raymond after meeting Kim Peek, a real-life savant; his characterization was based on both Peek and Bill Sackter, a good friend of Morrow who was the subject of Bill, an earlier film that Morrow wrote. Rain Man received overwhelmingly positive reviews at the time of its release, praising Hoffman's role and the wit and sophistication of the screenplay.
The film won four Oscars at the 61st Academy Awards (March 1989), including Best Picture, Best Original Screenplay, Best Director, andBest Actor in a leading role for Hoffman. Its crew received an additional four nominations. The film also won the Golden Bear at the 39th Berlin International Film Festival.

Charlie Babbitt (Tom Cruise), a Los Angeles car dealer in his mid-twenties, is in the middle of importing four grey market Lamborghinis. The deal is being threatened by the EPA, and if Charlie cannot meet its requirements he will lose a significant amount of money. After some quick subterfuge with an employee, Charlie leaves for a weekend trip to Palm Springs with his girlfriend, Susanna (Valeria Golino). Wikipedia