Complex sentence: In Peter Jackson's "The Lord of the Rings" film trilogy Isildur (played by Harry Sinclair) briefly appears in the first scenes of, and in an extended flashback scene later on.
Split into simpler sentences: In Peter Jackson's "The Lord of the Rings" film trilogy Isildur is portrayed by Harry Sinclair. He briefly appears in the first scenes of, and in an extended flashback scene later on.