The second option is the one that best captures the effect of the two structures on Steve's sharing of his experience: Steve shares his personal feelings through the diary entries. He uses the screenplay to distance himself from his trial.
In this structure, the diary entries serve as a direct outlet for Steve's inner thoughts and emotions, allowing the audience to connect with him on a personal level. In contrast, the screenplay format provides a more detached perspective, which helps him create a sense of separation from the traumatic events of his trial, thereby offering a contrast between personal experience and external representation.