What is the name of that movie?

I'm looking for a movie I watched before, But I can't remember it's named.
The story of the movie about a mother lost her son on a boat by falling in the sea and she refuses to believe that is her son has died, and when they found her son and she saw him she said that is not him and my son still alive and she keeps looking for him, until the end of the movie she finally believes that is her son has died.
does anyone know a similar movie?
P.S. this movie not in the English language.
Thanks