Barrymore was able to leverage his early work in Vaudeville and the theatre into roles in silent films. An article from 1914 about his role in The Man From Mexico, his second film, describes why he had become so popular in the industry. Barrymore had gained the reputation of a comedy actor in his theatre days and his early film career only aided in that aspect. Many of the early works in Hollywood were comedic pieces with serious elements because it was difficult for writers and directors to carry a cohesive narrative with no dialogue. As well it was much cheaper to produce short-form B and A-list movies, rather than long-form prestige films. This was due to the set design being much more difficult with the technological constraints as well as the camera work required for such films. Barrymore excelled at these short-form comedic pieces due to his years of practice in Vaudville and his unique ability to make people laugh.
Again in the Incorrigible Dukane in 1915 we see him play the lead in a comedy movie. The article praises his work in his previous films such as "Are You a Mason." It also describes the importance of his role in the film and how wonderful his portrayal of Dukane is. These early films were key in his rise to stardom and the gaining of his celebrity status in Hollywood along with his connection with the Famous Players production company. This reputation he gained through his early roles is what led him to film stardom. He's later able to supplement his comedic portfolio with more serious roles like Sherlock Holmes and Dr. Jekyll and Mr. Hide. These roles he played have been later redone time and time again which only adds to his and his family's legacy within the entertainment industry.