u/CKO1967

The Thunder win 115-110 to complete the sweep of the Lakers and stamp their passport to the NBA Western Conference finals.

Hint #1: The movie I'm thinking of was adapted from a six-part late 1950s BBC TV mini-series.

Hint #2: One of the supporting cast members has since gone on to a recurring role in "Game of Thrones".

Hint #3: The movie in question will be celebrating the 60-year anniversary of its UK release next November.