A little over an hour into A Bigger Splash, there is a distant shot of Dakota Johnson standing on some rocks full frontal naked. Dakota then proceeds to lie down and we get some more views of her breasts as the camera zooms in. Later on, Dakota is topless briefly while sitting in bed. Dakota also wears lots of see-through tops throughout the film.
Tilda Swinton is also naked quite a bit in this film but does not show full frontal nudity.
And for those who are interested, Ralph Fiennes shows his ass and penis a lot. Matthias Schoenaerts does too but not as much.
A Bigger Splash is currently playing at the Venice Film Festival.