Mrs. Hyde (2017) on Netflix

Plot summary

Madame Géquil teaches physics at an inner-city secondary school, where the pupils give a small, mature Frenchwoman little respect. Her husband and her headmaster support her but doubt she can carry on. A boy named Malik, disabled from birth and bright, disrupts lessons to copy the class toughs. When she counsels him alone, she tells him his mind can offset his body's limits. One evening, lightning strikes the laboratory where she works alone, and when she recovers she has a new power.