It is a complicated question. Not only has companies purchased other companies films over time but certain producers retained ownership of their films then make deals with other distributors. You all most have to research each film.
It was owned by MGM in North America so it fell under the pre 1986 titles that Warner has. Columbia had international distribution rights. What is even more confusing is that at the time THE WIND AND THE LION was released MGM was distributing their films through United Artists, which they did...
It is not a paramount acquisition. It is a distribution deal in which Warner and Paramount decide which titles to release based on the condition of the elements. Warner is not doing any work on the elements and depends on what Paramount has, which we learned with the release Blu-ray release of...
Well let's seeGunfight at OK CorralHATARIEl DoradoFunny FaceThe WomenThe Time MachineSabrinaTightropeSorcerer The Big Red OnePerformanceThe Americanization of Emily Point BlankEtc, etc.