I do not think it is necessary to use technology to modify the features of an actor, it is enough to choose different actors that interpret the different ages like in other movies, I think that for the boy michael is easy, another actor for the era of wall-thriller-bad, and another for the dangerous-history-invincible time, this actor can get a little older to interpret his last years as they have done with other actors in several movies, although it is not necessary since michael was not wrinkled or old in recent years. if michael changed a lot because of the surgery because that's not the important thing in the movie, just put a black actor as a child and then another actor lighter black skin young, and put an actor with white skin and black hair in the adulthood, in the movie they should explain vitiligo because it is part of their life and it is not something disastrous or what to hide, I think that this must be told in the movie, many who did not know through the movie condition on his skin and understand the color change. It is something positive. of his surgeries it is not necessary to speak, it is not the main topic and neither did Michael talk about this with anyone so it can be left aside. the most important thing is to choose good actors, the kind of hollywood actors who can do a good job, they do not have to know how to sing or dance, the music and the voice will be that of michael as in freddy's movie,the important thing is that the actors who interpret it are really actors, imitators would not be any good, this would not work, they should be actors of the stature of the great actors, who do it well.
and I think it's very important to show who was Michael as a person, as he was as a child and experiences as a child that would mark him, who was as a brother (and his brothers will get anecdotes and experiences to include in the film,positives), also show who was like uncle (taj, taryll and tj could count certain things that could be included and are positive) and who was as a friend and human being, you have to show both the talent and the human part, his help to others in selfless acts, also the importance of the messages in his music, the creative process, and show the most human michael, his joking and funny part, his kindness, and also his defects from the respect. would have to show clearly what was his perception of his childhood and the weight of fame in him, his natural talent and show the humanitarian michael and above all the human michael, son, brother, friend and father and the weight that fame had on his life for good and for bad. I believe that if the viewer connects with the human michael, the father who cared for his children, the teasing brother and the friend and fun-loving and read funny guy, this along with his talent, his tenacity at work, his perfectionism and creation will make this a good movie