Three films share the record for most Oscars wins with 11:
Ben-Hur, Titanic, and The Lord of the Rings: Return of the
King.
Ben-Hur (1959): Best Picture, Director, Actor (Charlton Heston),
Supporting Actor (Hugh Griffith), Editing, Cinematography, Art
Direction, Costume Design, Sound, Score, Visual Effects.
Titanic (1997): Best Picture, Director, Editing, Cinematography,
Art Direction, Costume Design, Sound, Score, Visual Effects, Sound
Effects Editing and Original Song.
The Lord of the Rings: The Return of the King (2003): Best
Picture, Director, Adapted Screenplay, Editing, Art Direction,
Costume Design, Sound, Score, Visual Effects, Makeup, Original
Song.