Hayden Panettiere’s sudden passing at age 36. What the autopsy reveals about her final hours. And, her struggles with addiction and abuse in her own words. Plus, ET's time with Hayden from her child star start, to behind the scenes of her biggest roles. And, her final interview just 3 months ago, candid on giving up custody of her young daughter! Then, Hollywood's Disney invasion! Anne Hathaway brought to tears as she pleads with Julie Andrews to join ‘Princess Diaries 3’. Plus, ‘Avengers’ assemble again! The new ‘X-Men’ stars revealed! And, ‘Frozen’ sequel secrets!