Question about movie Mother Teresa

in the movie Mother Teresa, there are two priests , Father Serrano and father Van Exem.
are they the real persons , or just fake names.

the story about father van exem is very touching in the movie, he is a selfless man as Mother Teresa,

or in the real life, there were priests help with Mother Teresa 's ministry.

do you know their name ?


I found something interesting about Fr. Celest Van Exem...and yes, he was for real...

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