So it is not surprising that his corporate vision and blunt, sometimes combative management style have collided with decades-old traditions at the Smithsonian.

Dubus builds a sturdy narrative about how these characters' visions of the American dream (shelter, security, even love) collide and collapse.

But that vision of an ideal health plan may collide with fiscal reality.

His cheery vision, however, has collided with the reality that HMV is still carrying £164m of debt.

My friend Dwight tells me that craziness is what ensues when two clear and opposing visions collide.

The only thing that would cause a reaction like that was if a mage's spell and a psychic's vision collided.

So two visions of New York collide, each borne of a different cultural moment.

The Economist Intelligence Unit entitled a brief on the deal "Big vision collides with small minds."

Two visions of the Democratic Party collided during its leadership meeting.

Conflicts arise any time a director's vision collides with pressures to make a commercial hit.