You Must Remember This: The Warner Bros. Story (2008) is a Documentary film that follows jack L. Warner, Harry Warner, Albert Warner and Sam Warner were siblings who were born in Poland and emigrated to Canada near the turn of the century. In 1903, the brothers entered the budding motion picture business. In time, the Warner Brothers moved into film production and would open their own studio in 1923. Currently, you can watch You Must Remember This: The Warner Bros. Story on Apple TV Store. Streaming availability may vary by country and platform over time. It has a user rating of 8.5 out of 10 from 12 votes. Fans of documentary movies may also want to explore similar titles below.