Christian was a lion originally purchased by Australians John Rendall and Anthony "Ace" Bourke from Harrods department store of London in 1969 and ultimately reintroduced to the wild by conservationist George Adamson. One year after George Adamson released Christian to the wild, his former owners decided to go looking for him in Africa to see whether Christian would remember them. Surprisingly, he did and with him were other lions in the pride who were also friendly.
-from the Christian the lion wikipedia entry
The part in the video when they reunite is too precious.
This second video is cute too, though possibly less dramatic. Carolyn Scott had polio as a child and doesn't dance with her dogs anymore and I'm guessing Rookie is dead now because he was 15 last year and health probz, but he looks like he had so much fun dancing!
Carolyn Scott & Rookie