What London schools are good for art/creative subject a levels?

[Plumbuddle]

My younger DS is clear he wants to be an animator so art or film school ultimately beckons. For A levels, I want him to go to a school that excels in fine and applied arts at A level instead of staying at his grammar where the emphasis is on intellectual achievements and art goes on the back burner. He's only in Y8 so there's plenty of time to plan. I've heard good of Kingston College, Merchant Taylor and Bedales. Any others known to be good? Holland Park?