MN Grenside

Mark Grenside started his career in 1976 in Kidnap and Ransom Insurance at Lloyds of London. However, in 1980 he took a chance at moving into media becoming one of the original team of (Jim) Henson International Television, creators of the Muppet Show, Fraggle Rock, Dark Crystal and Labyrinth.

Since then he has had three decades of experience in virtually every aspect of media. He has been directly involved in the financing, creation, production and distribution of film, television, and music.

In 2004 he formed a group that raised US $250m to buy Hallmark International, the Hallmark Channel and Library (ex-USA) that was successfully sold to NBC.

In 2010 -2014 he was a principal in MNG Films with a slate of nearly US$80m of television production for SKY, NBC Universal and The Hallmark Channel.

Mark is a Co-Founder and Board Member of Dragonfly Biosciences, one of Europe’s largest licensed growers of CBD with over 1,000 acres under cultivation. In addition, he has a number of equity investments in digital media.

He lives in Malta with his wife and two French Bulldogs.


In 2020 his debut novel FALL OUT was published to critical acclaim.

FALL OUT is a thriller set in the film industry that is a culmination of his creative spirit and facts gleaned from his 30-year media experience.

An LA screenwriter is murdered shortly after completing his latest script, FALL OUT - a thriller destined to be a blockbuster but written with a secret double purpose.

Echoing events from the past, the screenplay is sent to a very specific group of people. It will change their lives forever. The thread that connects them is a movie that had abruptly stopped shooting in the jungles of the Philippines nearly two decades earlier. For those that can unravel the carefully hidden clues FALL OUT exposes the truth about a conspiracy and murder that led to a half-a-billion-dollar fortune for a select few.

Producer Marcus Riley sets out on an increasingly dangerous quest to get FALL OUT made only to encounter life threatening danger and a crime from the past. Marcus teams up with designer Melinda (Mako) de Turris and the trail leads from a powerful Agent’s office in Hollywood, via hidden treasures in Belgravia, a murder at the Cannes Film Festival, a secretive Swiss hideaway to the ultimate showdown in the jungles of The Philippines.

With clues cleverly concealed in the screenplay, Marcus and Mako unravel a lethal puzzle that for some will bring death, others the truth and ends in a Philippine cave with a shocking secret...

“Riveting. Page-turning. A jaw-dropping rollercoaster of action and surprise. And best off all, it is based upon shocking true history. A real gem.”

Damien Lewis, International No. 1 Bestselling Author