Geoffrey Sax began his career in the 1970s, working for the BBC as an in-house director. Some of his earliest work includes the 30-minute special Canned Laughter, written by and starring Rowan Atkinson, and British comedy series such as End of Part One and Cannon & Ball. He moved into drama with episodes of Bergerac and Lovejoy, then directed Christopher Lee in the TV movie The Disputation (1986).
After leaving the BBC, Sax worked on freelance TV programs such as The New Statesman, for which he won a 1991 BAFTA TV award for Best Comedy Series. Subsequent British TV work includes movies such as Framed (1992) starring Timothy Dalton and Circle of Deceit (1993) starring Derek Jacobi.
Sax then went to the U.S. to work on American TV movies such as Broken Trust (1995) starring Tom Selleck for the Turner Network, Dr. Who starring Eric Roberts for Fox and the Showtime western telefilm Ruby Jean and Joe (1996) again with Selleck before returning to his homeland.
He helmed the multi-award winning TV movie Othello (2002), based on William Shakespeare's famous play, then won awards for the TV movie Tipping the Velvet (2002) from the Austin Gay & Lesbian International Film Festival, Dallas OUT TAKES and the Hamburg Lesbian and Gay Film Festival.