Caught an error

Just watched this for the first time.
Not too bad but not great for me.
But I did catch an error.
Simon Damian is shown as doing calligraphy lefty.
As a lefty myself, I was thinking that until the 1950s or 1960s being lefty was discouraged and he would never have learned to write that way but another poster brings up the point that it was done to show some demonic influence and he was certainly a "dark priest" so fair enough.
But I am talking about a clear goof in the film. They show a close-up of the calligrapher and you cannot tell if he is lefty or righty. Well, I used to do calligraphy and I think the close-up pen vs. hand position is righty but that is not the real error.
The real error is when they show Simon Damian writing away in a long view. A lefty cannot write that way while do calligraphy or using any "wet ink" pen. His left hand would smear what he had just written. Lefties either have to use a weird position where they loop their hand around the top of what they are writing or rotate the paper about 45d counterclockwise (so they are still writing from the top but the hand position is more comfortable). They can also rotate the paper the other way and write from the bottom and that could be what is in the close-up (though I doubt it). But Damian is writing as a righty would do calligraphy, with the paper square and his hand rolling across it; works OK for modern ballpoints though we lefties still end up with inkstains on the meaty part of the palm.
John
white trash philosophizer
and former calligrapher