Mark Sanderson (aka @Scriptcat) is a UCLA Film School alumni, working screenwriter, author, script consultant, and lecturer blessed to be living his childhood dream of making movies. His work ranges from his sketch comedy writing and performing as a founding member of The Amazing Onionheads, writing for MTV, to his spec sale, pitch sales, and his two-dozen screenwriting assignments with television premieres and worldwide distribution of his eighteen produced films.

Mark's films have premiered on Lifetime Network, LMN, SyFy, Fox, HereTV, HBO Canada, Christmas 24, NBC/Universal, and The Movie Network among others, also streaming on Tubi, Amazon, Hoopla, Fandango at Home, Apple+, and distributed globally. His films have been recognized at festivals including a premiere and opening the Palm Springs Int. Film Festival, premieres at the Hawaii Int. Film Festival, St. Louis Int. Film Festival, The Rainbow Festival in Hawaii, Newport Beach Int. Film Festival, Fort Lauderdale Int. Festival, and nominated for the Starboy award at the Oulu Int. Children's Film Festival in Finland. Mark’s long association with award winning Hollywood filmmakers dates back to his first produced screenplay and has since worked with Academy Award® winning producers, veteran directors, and has written films starring Academy Award® and Emmy® acting nominees and winners.

Mark was named one of Screencraft's "25 People Screenwriters Should Follow on Twitter," his interview series with Film Courage has garnered over 450,000 views on YouTube, he offers screenwriting advice on his own YouTube channel, X, and Instagram, and his first book, "A Screenwriter's Journey to Success" is now available on Amazon.