"Warner Sisters, Inc. was created to champion and encourage the production of media that “educates, entertains and enlightens” audiences. This was the original Warner Bros. Studio motto created by her grandfather, Harry Warner, President and co-founder that Cass Warner proudly considers her legacy."


Warner Sisters believes that quality storytelling is an extremely powerful communication tool that is capable of making a difference in how people perceive and understand the world. Our intention is to use this medium, whether it’s a feature film, documentary, TV series or other form of media, to create and increase awareness of issues, viewpoints and insights. We welcome people of like-mind to join this creative force.


In January 1994, founder Cass Warner began building Warner Sisters' team. She realized after her book on her family came out that it was time to find film projects that would exemplify the family legacy as well as bring her talented friends and associates together to create along these lines.

While taking a screenwriting class that was being taught by writer Howard Koch of CASABLANCA fame, a close relationship began. Howard shared stories of his time at Warner Bros. during The Golden Years of Hollywood, and entrusted her with many of his unproduced screenplays. She also discovered other talented writers who she collaborated with on screenplays that are now part of Warner Sisters' slate.
Her pet project became telling her family's story. She produced, wrote, and directed THE BROTHERS WARNER documentary with the help of award winning editor, Kate Amend. She also has been developing other avenues of telling the brothers' incredible tale, which are soon to come to fruition.


Our future looks bright! We continue to encourage and create projects that "educate, entertain and enlighten," shoot inspirational interviews, find new projects to be passionate about, and welcome like-minded investors, alliances, and co-creators.

Meet Cass Warner

Cass Warner has the honor of being a third-generation filmmaker. Her father was writer/producer, Milton Sperling, who was involved in over 50 films and was nominated twice for an Academy Award. Her mother, Betty Warner Sheinbaum, was an accomplished artist and political activist. Her grandfather, Harry Warner, was the original President and one of the founders of Warner Bros. studio.

She began her career sitting in on her father's story meetings and wandering the Warner Bros. studio lot observing the magic of movie making. After studying acting with the acclaimed director, Milton Katselas; learning screenwriting under the mentorship of her father, Milton Sperling, and Howard Koch (the writer of CASABLANCA); and being greatly inspired by researching and writing a book on the Warner brothers' story – "The Brothers Warner" (Available on Amazon.com); she formed her production company, Warner Sisters, which is proud to carry on the original Warner Bros. motto – creating projects that "educate, entertain and enlighten."

She continues to evolve Warner Sisters into a creative umbrella company that is continuing to develop film and TV projects; produce an extensive family website that will expand on her family's history; house her on-going interviews called "Conversations with Cass" that are a part of an "Inspirational Library" for her non-profit called "The Dream Factory" as well as work with Warner Bros. Studio Tour; and do speaking engagements.


As the founder and president of Warner Sisters, I wholeheartedly believe that the moving image – in the form of films, television, video and other media – is an incredibly powerful communication tool. It can be equated to today's tribal drum – carrying emotional, intellectual and philosophical messages, which are hummed almost unknowingly or subliminally as the result of taking in this form of entertainment.

Warner Sisters is here to carry on the purpose of the original Warner brothers' motto that my grandfather, Harry Warner, president and founder of the studio, initiated and implemented over 90 years ago. Producing and encouraging entertainment that "educates, entertains and enlightens" is my legacy. Inspiring other artists and businessmen to increase understanding amongst their fellow man is, I believe, our creative duty and honour.