Thynne was Director of Research and Knowledge Exchange in the School of Media Arts and Humanities, 2020 - 2024, responsible for grant capture and is acting Research Lead for Practice (Spring 2025). She is an award winning film-maker and establised the PhD in Creative and Crittical Practice at Sussex. She has been a jury member for film festivals and curated film programmes. She is a member of the steering committee of the Women's Film and Television History network and hosted the network conference at Sussex in 2023 with colleagues from Film Studies. 

She was formerly a member of the Feminist Review collective, on the Editorial Board of the Journal of Media Practice and Education, and Screenworks. She has acted as an assessor for the Fund for Scientific Research (FNRS), Belgium, been an advisor to UCAS and reviewer for publishers and journals including Media, Culture and Society, Women's History and Screenworks.

She has acted as an external examiner for MAs in Film-making at Goldsmiths, UEL, Brunel and UWE and PhDs at Exeter, Galway, UEL, Ulster, Roehampton and Bristol.

Her personal website has details of her professional film experience and activities.