Fr Paul Glynn is the author of A Song For Nagasaki which I am reading for Lent. I have read that the cause for the canonisation of Dr Takashi Nagai is under way. I hope to see the day he is canonised.
Fr Glynn, I believe, spent a lot of time in Japan and certainly seems to know the language, culture and people well. He writes the story of the Doctor around the long history and the tales of Catholics and persecution there.
This might be made into a short film on the 26 martyrs of Nagasaki. I think one of the men crucified was a teenaged boy.
You can see the films progress and offer some support HERE at ALL THAT REMAINS