The tone of a poem reveals the speaker's attitude towards the subject of the poem and towards its audience. In poems, the tone is indicated by using figures of speech, rhyme, sentence structure, and imagery.
Word choice is another resource that poets have to reveal their voice. Word choice refers to the selection of words the poet chooses to use and they determine the message that the poet is trying to convey. It adds style to the work. For example, choosing between abstract or concrete words draws an idea of the poet's style.
The most likely reason that the film adaption of "The Most Dangerous Game" changes this scene so that General Zaroff shoots arrows at Rainsford and his companion is to add a visual that creates suspense. The creators of the movie would have wanted the viewers to question what would happen. If they would have tried to portray this scene as in the book it would have been difficult to receive the same reaction as is created by reading the scene.
