By When Asif Kapadia's critically-praised documentary about the times, talent and troubles of Amy Winehouse was released earlier this year, even the people closest to her discovered something new about the late star.
Mark Ronson previously praised the film - simply titled Amy - saying that it was a "respectful" insight to a talent tragically lost before her time.
But even the producer - who worked closely with Winehouse for Back to Black and his own album Version - explained that the way her lyrics were used throughout taught him something new about her "genius".
"It just reinforced how smart she was. Smart's not even the word - smart is like bookish," Ronson told Digital Spy backstage at Virgin Media V Festival. "There was a genius in her lyrics.
"Even the songs on the first album like 'Stronger Than Me' that I didn't listen to that much because I didn't work on them, when you see them on the screen you're like, 'Oh shit - I can't believe someone I knew wrote that'."
Ronson also addressed the question of whether any lessons can be taken away from the film in regards to our "paparazzi culture", but admitted he's too close to the situation to be able to analyse it.
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Meanwhile, Ronson also told us that he thinks Boy George will make an "amazing, honest" coach on The Voice UK when he joins the show later this year.
Watch the trailer for Amy below:
