Natalie Portman

Film Deaths

Heat (1995) [Lauren Gustafsen]: Died in the bathroom as Portman was died by a blood water as Portman was not died.
Cold Mountain (2003) [Sara]: Commits suicide (off-camera) by shooting herself in her home, after the death of her baby; we only hear the shot from outside while Jude Law is butchering a hog. Her body is not shown afterwards. (This is only in the deleted scenes on the DVD; her death is not established at all in the finished film.)
Star Wars: Episode III: Revenge of the Sith (2005) [Senator Padme Amidala]: Dies shortly after childbirth, due to her having lost the will to live after Hayden Christensen goes over to the dark side and nearly cripples her by Force choking her. Her body is shown again afterwards during her funeral procession and after giving birth to her two kids, Luke and Leia.
The Other Boleyn Girl (2008) [Anne Boleyn]: Executed by beheading.
Black Swan (2010) [Nina Sayers]: Stabs herself in the stomach with a shard of glass, while hallucinating that she's attacking Mila Kunis; it isn't revealed that she actually stabbed herself until afterwards. She dies shortly afterwards as Vincent Cassel kneels by her side.