Complex sentence: The 625-seat theatre opened in 1909 as a venue for more intimate productions, and often rented it to producers including William Collier, Cecil B. DeMille and the Washington Square Players.
Split into simpler sentences: The 625-seat theatre opened in 1909 as a venue for more intimate productions. It was often leased to producers including William Collier, Cecil B. DeMille and the Washington Square Players.