Straczynski described specific visual cues in the screenplay, such as in Sanford Clark's confession scene. Clark's flashback to a falling axe is juxtaposed with the crumbling ash from Detective Ybarra's cigarette. The image served two purposes: it was an aesthetic correlation between the axe and the cigarette, and it suggested that Ybarra was so shocked by Clark's confession that he had not moved or even smoked in the 10 minutes Clark took to tell his story. As with most of the cues, Eastwood shot the scene as written. To ensure the veracity of the story, Straczynski incorporated quotes from the historical record, including court testimony, into the dialogue. He also included photocopies of news clippings every 15–20 pages in the script to remind people the story was a true one. So the credits could present the film as "a true story" rather than as "based on" one, Straczynski went through the script with Universal's legal department, providing attribution for every scene. Straczynski believed the only research error he made was in a scene that referenced "Scrabble", pre-dating its appearance on the market by two years. He changed the reference to a crossword puzzle. He did not alter the shooting script any further from his first draft; though Straczynski had written two more drafts for Howard, Eastwood insisted the first draft be filmed as he felt it had the clearest voice of the three. Straczynski said, "Clint's funny—if he likes it, he'll do it, that's the end of the discussion. When I met with him to ask, 'Do you want any changes, do you want any things cut, added to, subtracted from, whatever', he said, 'No. The draft is fine. Let's shoot the draft.