Brett Harvey discovered one of the biggest problems trying to film a conversation with Danny Trejo while he's driving around his local areas (something he loves to do) was the constant interruptions of passers-by shouting "Trejo" or "Machete" at him. These had to be edited out.
It took a month of contacting Danny Trejo before he warmed to the idea of a documentary about him. Brett Harvey put together a scrapbook of incidents and people from his life that persuaded Trejo that the project was in good hands.