The book "Bobby in Cinemaland" tells about the exciting adventures of a boy named Bobby, who suddenly finds himself in the wonderful world of cinema. Immersed in this fantastic world, Bobby meets famous movie stars, helps various characters solve their problems, and has fun helping to make movies. However, along with his new friends, he begins to understand that there are also dark forces in the movie land that may threaten his new home. The author of the book, Francis James Finn, has created an exciting world where children can feel like the heroes of their own adventures and discover all the magic of the film industry.