Goofs

Eden's hand and arm positions change between shots during the final scene in the movie, when she is kissing Adam.

When Adam and Eden try to escape from the police for the second time, near the end of the movie, Adam is holding Eden on his shoulders jumping through the big blocks of stone. When a man fires and hits the wire that holds the stone where they're standing, they fall down and Eden grabs the chain with one hand, and Alan with the other one. Then she is forced to let Adam fall down, but doing it, the gravity of her planet should attract her and cause her to fall in the opposite direction of Adam. You can obviously notice that this doesn't happen: Adam falls and Eden is still holding herself to the chain to avoid falling down in the same direction of Adam.

When Adam steps into the x-ray scanner on his first visit into the TransWorld building. The x-ray is that of a woman as evidenced by the structure of the pelvis and other observable differences in bone structure and soft tissue that should have caused shape and density changes if the x-ray was that of a male.

When Adam jumps from a river in Upabove to Downbelow in the water; according to the images, the height between the two places must be more than a thousand feet. Falling from this height into the water can have more severe physical effects than a simple cold.

When Adam is Up-side his hair should be falling upward toward Down Under, like that of anyone being held upside down. (Though it is possible before he goes up-side he sprays his hair with hairspray to keep it from falling up. However he doesn't always have time for this). The same can be said when Eden goes Down Below to meet Adam at Cafe Dos Mundos, in this case her hair is too flowing, blowing In the breeze, to be held down.

When Adam puts on the weights, it is shown to be placed on his body and legs. However there are none on his arms, meaning he would have to struggle to keep them down and get tired very quickly, but he doesn't.

The TransWorld building is connecting both worlds, therefore matter from one world must come into contact with inverse matter - and according to the laws of double gravity, get hot and burn within a few hours.

At 36:35 minutes in (and again in the 37th minute) Adam sets the Upside briefcase "down" on the ceiling and opens it. Both the strap and the lid obviously hang towards Downside, revealing that the briefcase is a Downside briefcase (and is attached to the ceiling using movie magic - magnets on both the briefcase and the ceiling).

When Adam first came out of Transword to Upabove, the shadows of the people were very short. For this situation, the sun should naturally shine from a higher angle than what was seen in this scene. While the two words are so close to each other that the sun can only be at an oblique angle between them.

If prolonged contact between matter from each of the two worlds results in said matter burning, when Adam eats fruit from Up Above the contact between the fruit and his digestive system should result in severe internal injuries.

At 1:13:28 young Adam called to young Eden, "hey," but the subtitles attributed this to Eden.

If both worlds are rotating on an axis, the cities, one above the other, would need to be at a pole to always align. Typically, planetary poles are extremely cold and nearly uninhabitable. And if the worlds don't rotate, this presents other problems, most notably with tides, weather patterns, etc.

In the ballroom club, the Up Above part has a floor that Down Below chandelier is coming from it. However, the rules of double gravity state that when anything from both worlds touch, it burns up after a few hours. How can this chandelier be secured seemingly permanently? Also the crystals of the chandelier are hung downwards, so they are under the influence of Down Below gravity, and in this case, they should have been destroyed after installation on Up Above, or if they were made at the Up Above, the crystals should have been hung upwards. (This is one of several examples of the Double Gravity rule being broken, including two world buildings such as Trans World and Power or Oil transmission facilities).

If two planets are to be placed next to each other, their speed should be such that it prevents one of them from falling on the other due to gravity, especially in this short distance, the rotation speed should be significantly high. and if two points of two planets are constantly facing each other, so both or one of them should not rotate, or if it does, it should rotate very fast around the opposite planet. It is precisely because of this difference in rotation speed that a specific point on the moon cannot be seen permanently at one point on Earth. If two planets rotate rapidly or if one or both of them do not, the effects of gravity or the length of the day and night will make life on both or one of them quite difficult or impossible at all. These physical laws have worked the same way in every known part of the universe so far, so if the filmmakers wanted to create a world with different physical laws, they would have had to explain it more in the movie.

The amount of times that matter from one word stays in the other for hours without burning up are numerous. Examples: Adam's suit after jumping in the water remains on his world for days; the sample of metal kept in the jar, food in Adam's digest track (which should burn up and kill him).