Movies That Might Help to Illustrate Who These People Were

William the Conqueror:
The Warlord starring Charlton Heston  Good for costumes and for attitudes, nothing about William himself.

Stephen and Matilda:
The miniseries: Pillars of the Earth  A point of view by peasantry, but some glimpses of society and the lives of Stephen and Matilda and the havoc they wreaked.  The book is a better choice.

Henry II:
A Lion in Winter with Peter O'Toole and Catherine Hepburn... lots of departures from history, but a good taste of the time period and personalities.
Becket with Peter O'Toole and Richard Burton

Richard and John:
Ivanhoe one with Robert Taylor and one by A&E
Robin Hood with Errol Flynn
Kingdom of Heaven  with Orlando Bloom

Edward I:
Braveheart with Mel Gibson

Henry VIII:
The Six Wives of Henry the Eighth    with Charles Laughton
A Man For All Seasons   Paul Scofield and Richard Shaw
Anne of the Thousand Days    Genevieve Bujold and Richard Burton

Elizabeth 1:
Elizabeth Cate Blanchett
Elizabeth The Golden Age  Cate Blanchett
Shakespeare in Love  with Gwyneth Paltrow and Joseph Fiennes, though a comedy, it gives a feeling of the times.
Mary Queen of Scots  Vanessa Redgrave

Charles I :
Cromwell with Richard Harris and Alec Guiness

Charles II:
Restoration  with Robert Downey Junior   Though a comedy, it gives a feeling of the time.

George III:
The Madness of King George with Nigel Hawthorne and Helen Mirren

Victoria and William IV:
The Young Victoria  with Emily Blunt

George VI:
The King's Speech with Colin Firth

Elizabeth II:
The Queen  with Helen Mirren


Then there are the Shakespeare plays in cinema:
Henry V, Henry VI, Richard III

ALSO:
Go to YouTube and search for the names of the king or queen, or search for History of the Kings and Queens of England a great series and not too long and drawn out.