I watched the original "Lonesome Dove" miniseries over the weekend and was of course blown away once again by the fine acting of its stars. As I thought about the casting, it occurred to me that five of the cast members have been Oscar winners at some point in their careers: Robert Duvall, Tommy Lee Jones, Angelica Houston, Diane Lane, and Chris Cooper. Another, Frederick Forrest, was an Oscar nominee once, but did not win. That's a pretty impressive array of Academy Award winners. Anyway, my question is this: What movie or mini-series has the most cast members who have won Oscars at some point in their careers?