Film captures a mother's struggle with Alzheimer's

Kara Wai Ying-hung says she feels guilty about her late discovery of her mother's struggle with Alzheimer's disease.

"My mother showed the early-stage symptoms in her 50s, an age seemingly too young to develop the disease. I didn't realize it in time and had been rude and careless to her."

With her career spanning 40 years, Wai is one of the icons in the martial arts genre in Hong Kong cinemas. The first recipient of the Hong Kong Academy Award for best actress, Wai has acted in about 150 movies and TV series.