All I remember is a young boy or maybe a girl with their mother in a mountanous desert type setting. They are attacked by a lion or tiger at one point and the mother eventually dies in quicksand while the child tries to save her but isnt strong enough. Maybe post apocalyptic type movie
Wild wild guess, based on your words (desert mountains, post apocolypse, quicksand) ‘Madmax: Beyond Thunderdome
http://youtu.be/Uouqnng_Xro
Any chance the movie was in Spanish and on TV?