Mark Irwin Forstater (born 1943) is an American-expat living in Britain film and TV producer, author, audio producer, music producer and tech entrepreneur notable for producing the classic comedy film Monty Python and the Holy Grail and the cult science fiction classic Xtro. Forstater's latest film is called Swipe Fever, a rom-com for Gen Z and Millennial audiences, scheduled for theatre release in February 2023. Alongside composer and director Nathan Neuman, Forstater is also launching a web3 platform called Dreambird.