[12][6] She produced and edited Noé's short film Carne (1991) and its sequel, the feature-length I Stand Alone (1998), and together they formed the production company Les Cinémas de la Zone in 1991.
[13][9] Noé explained their coming together as business partners: "we discovered that we shared a desire to make films atypical and we decided together to create our own society, Les Cinémas de la Zone, in order to finance our projects.
[9] Hadžihalilović also contributed to the screenplay of Noé's critically divisive Enter the Void (2009), and continued as a producer of Lux Æterna (2019) and Vortex (2021).
The film features child abuse, and ends with Mimi taking sleeping pills in an effort to copy her mother.
[9] The film follows three young girls who attend a secluded mysterious boarding school and their interactions with their teachers (Cotillard and Fougerolles).
[9] She has commented on the film's similarity or references to Peter Weir's Picnic at Hanging Rock (1975), Dario Argento's Suspiria (1977), and Victor Erice's The Spirit of the Beehive (1973).
[20] In 2021, Hadžihalilović released her first English-language feature, Earwig, about a girl whose teeth are made of ice, which won Special Jury Prize at San Sebastian Film Festival.