Lifesize

Lifesize is the comical tale of a family's Grandmother who makes a curious decision at the end of her life. Past this point, she has decreed, she will only be seen wearing a robotic mask and shall no longer be known by such ridiculous names as "Mother" or Grandma." Being the matriarch, the others really have no choice but to accept her wishes and all the tongue-in-cheek situations that ensue. - IMDb