Passage: On 13 January 2008, Back to Black held the number-one position on the Billboard Pan European charts for the third consecutive week. On 20 February 2008, Winehouse performed at the 2008 Brit Awards, performing "Valerie" with Mark Ronson, followed by "Love Is a Losing Game." She urged the crowd to "make some noise for my Blake."In February 2008, Winehouse also won Grammy Awards in the following categories: Record of the Year, Song of the Year, Best Female Pop Vocal Performance for the single "Rehab," and Best Pop Vocal Album. Additionally, Back to Black was nominated for Album of the Year. Ronson's work with her won the Grammy Award for Producer of the Year, in the non-classical category. The singer also earned a Grammy as Best New Artist, earning her an entry in the 2009 edition of the Guinness Book of World Records for Most Grammy Awards won by a British Female Act. She ended her acceptance speech for Record of the Year with, "This is for London because Camden town ain't burning down," in reference to the Camden Market fire. Winehouse was forced to perform "You Know I'm No Good" and "Rehab" for the awards ceremony via satellite, as her visa approval had not been processed in time.After the Grammys, the album's sales increased, catapulting Back to Black to number two on the US Billboard 200, after it initially peaked in the seventh position. A special deluxe edition of Back to Black topped the UK album charts on 2 March 2008. Meanwhile, the original edition of the album was ranked at number 30 in its 68th week on the charts, while Frank charted at number 35.In Paris, she performed what was described as a "well-executed 40-minute" set at the opening of a Fendi boutique in early March. By 12 March, the album had sold a total of 2,467,575 copies—318,350 copies had been sold in the previous 10 weeks—putting the album on the UK's top-10 best-selling albums of the 21st century for the first time. On 7 April, Back to Black was in the top position of the pan-European charts for the sixth consecutive and thirteenth...

Question: How long is Amy's Documentary DVD?
78-minute