Mark Wahlberg is an unusual figure in Hollywood: an acting superstar who says “Being a Catholic is the most important aspect of my life”, and that he can’t start the day without 10 minutes of prayer.

Now he is preparing for his most Catholic role yet: he will play Fr Stuart Long, an American priest and former boxer who died in 2014 at the age of 50.

Wahlberg announced on Wednesday that he is teaming up with his long-term collaborator, director David O Russell, on a screenplay about the priest’s life.