Marvin Hamlisch Died From Lung Failure

TMZ obtained the document, filed in L.A., which shows Hamlisch died on August 6th primarily from respiratory arrest (lung failure) ... caused by a combination of anoxic brain encephalopathy (failure of oxygen to reach the brain) and hypertension (high blood pressure).

The document shows Hamlisch suffered from A.B.E. in the weeks before his death, though it's unclear if he was aware of the condition or exhibiting symptoms.

Hamlisch won 2 Academy Awards for composing the music for "The Way We Were" and one Oscar for "The Sting." He also worked on music for "Sophie's Choice," "The Spy Who Loved Me" and "A Chorus Line."