The mother passed away either when she gave birth to 2 boys (Cannpt remmeber if they are teens.) or when they were still babies.
At the end of the movie, the family found a VHS tape that has a family picnic video recorded by camcorder. The young and beautiful mother (red dress/clothing?) looked into the camera as if she was looking throught the TV to tell the boys that she loves them and they are her everything. Very touching.
I remember it as a film from Spain, I watched it during a flight to Europe. Thank you so much!!