Her second studio album I Wanna Be With You became Moore's debut album outside the United States, selling over 3 million copies
worldwide. In 2001, he released his third album, Mandy Moore that detached "In My Pocket"; was his last album to be certified by the RIAA, receiving a gold certification.
Shortly after in 2003, Moore released her fourth studio album Coverage versions of classic sixties and eighties, such as "Have a Little Faith in Me" and "Senses Working Overtime".
After the release of the album, Moore broke the record label, due to creative differences. The division led to the record company to release two compilation albums The Best of and Candy, which have sold over 300,000 copies to date. Moore returned to music until 2007, with the launch of Wild Hope, her fifth studio album. With this album Moore's musical career took a turn pop-folk music and directed towards an adult audience genre. The album failed to reap great success, having sold to date around 200,000 copies.
In 2009, he returned to the industry with Amanda Leigh, her sixth studio album, which peaked at No. 25 on Billboard 200 and sold over 100,000 copies. In 2012, Moore confirmed that he was working on his seventh studio album, currently scheduled for launch in 2014. Since 2009, Moore has sold over 10 million albums worldwide, according to Billboard. In 2012, Mandy was ranked No. 96 on the list of "The 100 Greatest Women in Music" according to VH1.
In addition to his musical career, Moore has also dabbled in acting. She made her film debut in the movie Dr. Dolittle 2 (2001), although it was only a minor role voice. Later that year, she appeared as Lana in the comedy film The Princess Diaries by Anne Hathaway. He had his first starring role in the romantic movie A Walk to Remember (2002), which was based on the book by Nicholas Sparks. The film became a box-office smash.
Between 2003 and 2006, Moore appeared in several films, including How to Deal, Chasing Liberty, Saved! and Racing Stripes.
He later appeared in the film American Dreamz (2006); The film failed to recover its budget of $ 17 million.
The following year, Moore appeared in the romantic comedy Because I Said !, with Diane Keaton. The film was negatively received by critics, but was a financial success, grossing over $ 69 million worldwide. In 2010, Moore plays Tangled Rapunzel in the animated film, in which she performed the song "I See the Light", which was later won a Grammy.