Where the idea of movement and dance comes to the front is her ascending a tower, a nightmarish tower of Babel, where he twirls, twists, slides, and glides. She exists as the only truly human form, moving among Dali's Surrealistic landscape. She is only lightly bound by the laws of physics, as she dances from monstrously gigantic telephone handsets, or sinks into a shadow as if it were a pool comprised of the absence of light. She becomes form, the shapes created by her body and hair defining the reality of the situation. Though she is mutable at times, becoming a ballerina with a marble head she rolls at one point, she is largely what we might consider real, solid, human.
The technique used in Joie de Vivre is almost a total reversal. The figures are recogniseably human at all times, though far less real in their movements. The laws of physics again lightly apply, but they are also of a form that does conform to the needs of the composition as opposed to remaining natural. It is as if they exist in the film to give the idea of movement as a character as opposed to these two figures being characters themselves. Their dance, and they are dancing through a realistic world of warehouses and power plants, is the subject of the film, but it also forces us to consider not the story that is being told, but the movements that are being executed. The emotional flow is what is expressed through the movement, and while there is something of a story (it is closer related to a road trip film than anything else) it is all in service of allowing these movements to convey emotional impact.
Where these two films align is in the ability to allow the human form to represent emotionality in general. Without the woman's dance in Destino, there is merely a slipstream experience of Dali paintings being encountered. Without it, Joie de Vivre simply does not exist. The impact the bodily movement has on these films is immense, and it shows a simple truth understood by both the Surrealists and the Naturalists over the centuries - that Humans can connect with humans, no matter how strange the setting.