Paris Hilton continues to rally behind her old friend Britney Spears, whose personal turmoil is detailed in a shocking new documentary. The New York Times Presents: Framing Britney Spears was released earlier this month and documents the 39-year-old pop star's rise to fame, her treatment by the tabloid media and current life under a controversial conservatorship that was implemented in 2008, after she was hospitalised for psychiatric treatment. It features interviews and appearances by friends, including Paris. The 40-year-old socialite and reality star, who partied with Britney in 2006 has expressed support for the #FreeBritney movement on social media and said that adults should be able to live their lives without being controlled. On Feb. 25, Paris echoed remarks on a new episode of her new iHeartRadio podcast This Is Paris. "I haven't spoken to her in a few months. I haven't even watched the film yet, but I heard it's a really sad movie. It makes me feel for her, because she's such a sweet girl and I just can't imagine being controlled like that."