After her picture being seen in a magazine, she was offered the role of Bella in Twilight (2008) but turned it down.
On October 27, 2011, it was announced that Cobain was engaged to Isaiah Silva (born 1985), a musician.
Filed for divorce from her husband of 21 months Isaiah Silva. (March 2016)
She was Tim Burton's first choice for the lead role in Alice in Wonderland (2010) but she turned it down.
Her ancestry includes Irish, English, Dutch, French/French-Canadian, German, Scottish, Welsh, and, through her mother, one eighth Ashkenazi Jewish and 1/16th Cuban [including Andalusian and Asturian Spanish, and Basque].