In an interview with Hollywood XYZ, Director Max Minghella confirmed that all of Elle Fanning's singing in Teen Spirit in the film is real and in fact recorded live, not in post-production.
The plot has strong parallels to Flashdance (1983) and even the title song "Flashdance... What a Feeling" from that film is re-used.
The original screenplay was set in Poland however the story was reset to the United Kingdom when Elle Fanning was cast.
Elle Fanning had her ears pierced for the first time especially for the role of Violet, getting three piercings in each ear.