While there she was commissioned to write the feature film Leave to Remain and other scripts for people such as Oliver Dahan, Eric Cantona and Tony Grisoni.
"[13] Colbert started working on her series Ordinary Madness[14] after seeing her friend's two-year-old press their fingers against a pane of glass where a butterfly had landed and try to zoom into the creature to make it bigger.
Her delicate images hovering between intimacy and distance; desire and repulsion; robotic carcasses and sexualized bodies; creating a dystopic vision of the future where the cyborg emoji – an exotic species – runs through deserted households, its needs crystallized in a state of perpetual surveillance.
"[18] Her show Dreamland Siren curated by Simon de Pury and UTA Artist Spac exhibited at Fitzrovia Chapel during Frieze Art Fair.
[6][25] She is the co-author of feature film Leave to Remain about underage asylum seekers in Britain[26] with a score by Mercury Prize-winning band Alt-J.
[29] In 2016, she wrote and directed The Silent Man, described in ID as "the most surreal shorts you'll ever see"[30] with Simon Amstell, Sophie Kennedy-Clark, Ben Miller, and a cameo by Cillian Murphy.
It is a biopic about artist Salvador Dalí starring Sir Ben Kingsley, Ezra Miller, Andreja Peijic, and Suki Waterhouse.
[32] Colbert directed and co-wrote She Will with Alice Krige, Kota Eberhart, Malcolm McDowell, and Rupert Everett produced by Dario Argento and Ed Pressman Films with an original score by Clint Mansell.
[33] Jessica Kiang in Variety called it "A Superb, Sly Horror-Drama Debut Delivering Otherworldly Feminist Vengeance",[34] Guillermo del Toro wrote it "a remarkable directorial debut, purely cinematic", and Alfonso Cuarón said "it sits in the tradition of great psychological horror films [which] leaves one questioning long after [it] is finished".
[35][36] For the release Colbert collaborated with designer Ashley Williams and street artist Clayton on capsule collections supporting End Violence Against Women and Girls and worn by model and activist Lily Cole as well as Adhel Bol.
[37] Colbert is the founder of Popcorn Group, a production company known for the short Leading Lady Parts[38] (with Emilia Clarke, Florence Pugh and Gemma Chan), as well as for co-producing Fleabag[39] in the WestEnd, and Alice Lowe's time travelling romcom TimeStalker with the BFI.
[40] Colbert was one of the publishers of The Artists Colouring Book of ABCs done in support of the Kids Company,[41] featuring works by Grayson Perry, Alex Katz, and Tracey Emin.
[42] The committee has included the likes of Fatima Bhutto, Aurora, Jonny Woo, Lena Headey, and Enda Walsh who awarded the prize to Bryony Kimmings, Karim Khan and Sabrina Ali among others.