We're only three days into this year's Venice Film Festival but Sydney Sweeney has already posed up a storm in an array of stunning white dresses.

Sydney Sweeney has got straight to work in Venice, roping in a pal to snap an impromptu photoshoot on board a water taxi.

We're only three days into this year's Venice Film Festival but Sydney Sweeney has already posed up a storm in an array of stunning white dresses.