2012–present: Independent films and directorial focus
In 2012, Wright founded her film production company, BonBonLumiere. That same year, Wright made her directorial and screenwriting debut in Separate We Come, Separate We Go, a coming-of-age short film starring Harry Potter co-star David Thewlis. The film premiered at the Cannes Film Festival in 2012 and the Gold Coast International Film Festival in 2013. Nick de Semlyen of Empire praised Wright's direction, saying that "it's an impressive first work from someone who clearly has ambition to burn."
In 2013, she co-starred in Before I Sleep alongside an ensemble cast. The film was shot in New England, and premiered at the 2013 Heartland Film Festival. She then appeared in The Sea (2013), an adaptation of the John Banville novel, playing Rose, a "fragile, distracted young nanny". The film premiered at the Edinburgh International Film Festival on 23 June 2013. The Sea received mixed reviews; one critic wrote that Wright was an "underused but ultimately ineffective screen presence". That same year, she also made her stage debut in the role of The Girl in Peter Ustinov's The Moment of Truth. The play was performed at the Southwark Playhouse in London from June to July. Wright received critical praise for her stage performance; the British Theatre Guide wrote she "makes clear in her performance, she is motivated by love for her father and movingly has to face rejection..." Wright filmed the comedy Those Who Wander and the family-adventure film Who Killed Nelson Nutmeg? in 2013. In December 2013, she directed Sophie Lowe in her music video "Dreaming". The video was shot in Joshua Tree National Park. In 2014, she took part in the third series of The Great Sport Relief Bake Off, winning the first episode and being named the "Star Baker".
Wright starred alongside Rhys Wakefield, James D'Arcy and her Harry Potter co-star Freddie Stroma in the science fiction film After the Dark (2014), directed by John Huddles and filmed in Jakarta, Indonesia. She played Georgina, one of the students. The film premiered at Neuchâtel International Fantastic Film Festival on 7 July 2013. Reviews for After the Dark were mixed; The Village Voice commented that the film "slid[es] into a ... soapy backstory while suggesting that supporting actress Bonnie Wright might have been a stronger [..] lead". Wright voiced a character in the animated film My Dad Is Scrooge (2014). In May 2014, Wright wrote and directed short film Know Thyself, starring her Harry Potter co-star Christian Coulson. Know Thyself premiered at festival NewFilmmakers NY on 10 February 2016; Elle referred to the film as "emotive". In July 2014, Wright directed the short film Fade to Gold, showcasing her parents' creative design of their jewellery.
In August 2016, her company released the first instalment of Sextant, a twelve-part work with each short shot under a full moon, containing themes of cosmic order and poetry. Wright stated that she desired to shoot "when our sensitivities are heightened" and that the film reflected her interest in how a landscape can be "the catalyst..for self discovery". Wright's next directorial project was a three-episode series entitled Phone Calls, showing phone conversations with three pairs of people who never physically interact on-screen. Phone Calls premiered at the Tribeca Film Festival in April 2017. In June 2018, Wright released Medusa's Ankles, based on a section of The Matisse Stories by A. S. Byatt. The film was shot in Lincoln, England, and starred Kerry Fox as a woman experiencing a menopausal midlife crisis, alongside Harry Potter co-star Jason Isaacs as a charismatic, "self obsessed" hairdresser with whom she develops a fraught connection. Wright stated that in her direction, she tried to capture "the intimate experience" of going to a salon and experiencing sudden, personal change. Wright directed Lowe again in her music video for "Taught You How To Feel", released in November 2018. Wright also directed the music video for Pete Yorn and Scarlett Johansson's single, "Iguana Bird", an "expressive personification of heartbreak recovery", released in October 2018.
Wright's next video was for independent artist MAGUIRE, entitled "Fallible". It was released in June 2019; Fame Magazine called it a "breathtakingly candid portrait". In March 2020, Wright narrated an audiobook adaption of Babbitty Rabbitty and her Cackling Stump from The Tales of Beedle the Bard, an in-universe book of Wizarding World children's stories written by Rowling. The audiobook was released in aid of the charity Lumos.