[2] He played the role of The Guvnor in British Gangster Movie Gatwick Gangsters (2014),[3] Jeremiah in The Singleton (2015),[4] Elmer Spore in Witch (2015), Andrew Carter, Aryan's Lawyer, in feature film 1603 (2015), PC Pepper in Golden Years (2015), Richardson Heavy in Legend (2015),[5] is confirmed to join the cast of Adam Jones (2015), has been announced to play the lead role of Eddie Ward in the upcoming action film The Levellers (2015) and can be seen as Albert Anastasia in Mafia´s Greatest Hits.
In 2011, Hart became actively involved with some student films and music videos, met and conversed with Jason Statham on set of Hummingbird who is said to have inspired him to further his acting skills and abilities on his craft.
He later went on to appear in Charlie Brooker's Black Mirror on Channel Four Television and Feature film Jack Ryan:Shadow Recruit, starring Chris Pine, Kevin Costner and Keira Knightley.
[8] Also in 2014, Hart was chosen for the role of Mr. Windsor in Coolio – Time Travel Gangster (2014),Andrew Carter in 1603 (2015), alongside Danny Darren, Bent's Crispian Belfrage and Rachel Marquez, a Disciple in Londinium (2015),[9] as Jeremiah in The Singleton (2015) as well as additional roles in A Fistful of Bullets (2016),starring War Horse`s Geoff Bell, PC Pepper in Golden Years (2015) alongside Titanic's Bernard Hill, Una Stubbs and Virginia McKenna, the role of Elmer Spore in feature film Witch (2015), A police officer in Honeytrap (2015), the UK Prime Minister in Star Gods of Terra (2015),[10] The Guvnor in Gatwick Gangsters (2015) and appeared in Nollywood film International Games (2015).
In 2018, Hart teamed up with Lionhawk Picture´s producer Pamala Hall, together with Hart´s Hartfelt Media Film Productions, to collaborate towards a movie adaption for Desuba-On Reflection.