Dream casting: Jonah Hill as Apple engineer Gray Powell, John Cho as Gizmodo editor Jason Chen and, in a cameo, Kevin Spacey as Steve Jobs.

角色安排：乔纳·希尔（Jonah Hill）饰苹果工程师格雷·鲍威尔（Gray Powell），约翰·赵（John Cho）饰Gizmodo的编辑贾森·陈（Jason Chen），凯文·斯派西（Kevin Spacey）客串饰演乔布斯一角。

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However,much of what we know today about the Grand Canyon was recorded by John Wesley Powell.

VOA: special.2009.10.07

John Wesley Powell's reports and maps from the trip made him famous.

VOA: special.2009.10.07

John Wesley Powell and his group traveled in four boats.

VOA: special.2009.10.07

And Dr John Powell, chairman of the British Medical Association's IT committee, backed the opposition.

BBC: NEWS | Health | Uncovering the secrets of the NHS

John Powell, who also went on the trip, told CNN affiliate WTAE-TV that the whole reason the group left early was so they could attend.

CNN: Students can't be part of main graduation because of Mexico trip

"Four years ago the authority said the cottage hospital was so run down it was not fit for purpose, " said John Powell, Treasurer of Clevedon Hospital League of Friends.

BBC: Demands over why Clevedon hospital plan scrapped