Taking the plunge! Swimsuit models Kate Upton and Anne V put cleavage on show at New York premiere of House Of Z

Zac Posen called on his fashionable friends at the New York City premiere of his documentary House Of Z on Thursday.

Sports Illustrated swimsuit models Anne V, 31, and Kate Upton, 25, were on hand to support the 36-year-old fashion designer.

The pair posed together ahead of the screening, which coincided with New York Fashion Week.