Marvelous (2008)

After her husband leaves her, Gwen goes to live with her sister Queenie. She discovers that she has suddenly acquired a special gift that enables her to make mechanical objects work again and also healing powers. As news of this travels they find themselves pursued by the press and people and take refuge in the home of a wealthy elderly woman cured by Gwen. Gwen is disturbed by all the publicity, but Queenie relishes it and claims she has is a medium.

Unfortunately the movie Marvelous is not yet available on HBO Max.