Jack Nielen is a young English actor working and living in London. Jack appears in a central role in the new critically acclaimed feature film Spencer, directed by Pablo Larraín, where he portrays Prince William opposite Kristen Stewart playing Princess Diana. The movie premiered at The Venice Film Festival on September 3rd 2021. The UK premiere at the London Film Festival took place October 7th and the theatre release for both, the US and the UK will followed on November 5th.