Vague title, vaguer premise - ID a film for me!

About six months ago I met a guy from Zimbabwe and he was talking about lions and their distaste for hyenas. He told me to see a film called, I believe, Mortal Enemies. I checked imdb and the only thing I could find was a Korean film from 1977 that nobody has ever seen. Tried google, got a bunch of articles about lions not liking hyenas who, in turn, don’t like panthers.

I have no idea if the film is a documentary, a feature film, a collection of lion/hyena nature video fights or what. I have no idea if it’s B&W or color, what country it’s from or what decade it was made in (I’d be willing to wager that it is from the 20th century though). Anybody know about this movie and where I can find it?

Could he have been talking about Eternal Enemies: Lions and Hyenas?

That looks like it’s probably it. Thanks!