Just in case you were wondering, Leonardo DiCaprio used an actual flamethrower on the set of “Once Upon a Time in Hollywood.” He said, “The first day I used that was a really hard day,” he explained. “I really had to blast them with a real flamethrower and torch all of them. I started feeling very bad for them, but then soon felt very bad for myself because that heat just wafted right back into my face. I started to get chronic headaches that day.”
