The White Lions of Timbavati (2012)

This is the exciting story of two lion cubs born with a rare whim of nature. In Krüger park, South Africa's major natural reserve, about once in a generation a pride of lions includes a rarity: white cubs. This time two are born to the sister of a lioness with two elder, regular 'golden' cubs, whose natural camouflage is a major hunting and hiding advantage. The tiny pride is precarious anyway, having lost its sole male, with three lion brothers roaming around, eager to render a lioness mating-ready again by killing her offspring. Meanwhile prey and even the cubs are in danger from hyenas and leopards, as everyone lurks for a 'free meal', and some prey defending themselves and their young prove fearsome, notably buffaloes

Unfortunately the movie The White Lions of Timbavati is not yet available on HBO Max.