At the Toronto International Film Festival, the Hollywood elite hobnob against a background of arthouse screenings and Oscar-hopefuls, highbrow panel discussions and red carpet photo-ops.

Instead of asking celebrities the typical lines about "influences" and "getting into character," however, Vanity Fair editors posed a question far more relevant: What color is celebrity GOP presidential candidate Donald Trump 's hair? Watch Brian Cranston, Julianne Moore, Kristen Stewart, Liam Hemsworth, Helen Mirren, Dakota Fanning and Jason Bateman, among others, try to figure it out:

A sampling of responses:

"Corn."

"Cornflake."

"Tuscan surprise."

"Golden-egg."

"Horrible."

In the end, Trump's hair -- much like his candidacy -- remains an enigma.

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