This clip shows some of his witty remarks from the film 'A Man for all Seasons'.
In the film he was played by Paul Scofield, also a great Catholic* (*apologies, I have since discovered that he was not a Catholic) as well as an accomplished actor.
But one of St Thomas More's most poignant lines is not included in the clip; it was made by him when he commented on the lamentable state of the Catholic Church in England and it could be just as applicable today.
More said (of the absence of backbone among the Bishops and, to a lesser degree, the priests), that the country suffered from:
"........A weak clergy lacking in grace"