A new Netflix documentary, which was filming when Hulk Hogan died, promises to reveal the unseen side of the WWE legend.

Hulk Hogan was in the midst of filming a documentary project for Netflix at the time of his death, CNN has learned.

Pro wrestling icon Hulk Hogan died of a heart attack, Florida officials confirmed Thursday. The 71-year-old entertainer, whose real name was Terry Gene Bollea, died last week in Clearwater, Florida. The official cause of death was acute myocardial infarction,