Which two plot elements in the film The Speckled Band differ from this excerpt from Sir Arthur Conan Doyle’s story “The Adventure of the Speckled Band”?

“When Dr. Roylott was in India he married my mother, Mrs. Stoner, the young widow of Major-General Stoner, of the Bengal Artillery. My sister Julia and I were twins, and we were only two years old at the time of my mother's re-marriage. . . .”

In the film, Julia’s name is changed to Violet.
In the film, Helen’s mother remarries when Helen is four years old.
In the film, Helen and her sister are born five years apart.
In the film, Helen’s mother is divorced; she is not a widow.