Waves, Camera, Action!

It is safe to assume that anyone at Cannes for that city's annual film festival would be familiar with a camera and how to use it. For the first 3:40 of this video, the operator returns more than a few times to the two closed patio umbrellas as a frame within a frame. After that, a zoom-in, some dissolves, and then, at 5:15, a soundtrack, before closing with a series of stills.