"I’m not saying anything that anybody hasn’t already said — and this is a weird analogy to draw — [but] in the NFL, there are lots of players arrested for smoking weed and there is other people’s behaviour that goes way beyond that and it’s tolerated because they’re very famous players," he continued. "I suppose the thing I was struck by was, we did have a guy who was reprimanded for weed on the [original Potter] film, essentially, so obviously what Johnny has been accused of is much greater than that."