It takes Sinbad and his men a day's ride through the desert, a tangled forest of vines, deadly swamps, and a volcano valley to reach the foot of the tower. But it takes Kerim and Galgo only a minute to get there by carriage.
As Sinbad is rescued from the water by fishermen, he is seen with his head towards the front of the boat, but when the angle of the scene changes, his head is now towards the rear of the boat.
Perhaps to keep from traumatizing the kiddies, El Kerim's heart looks more like a red satin valentine than a human organ.
As Sinbad navigates his ship through treacherous rocks, parts of the ship and crew have see-through sections that reveal the use of chroma key special effects.
The parrot seen in the palace during the spider dance sequence is a South American species. South America and the rest of the New World would not have been known to the people living during the Abbasid Caliphate for at least 300 or more years.
In the scene with the crocodiles/alligators in the swamp, wires can be seen pulling the animals towards the terrified man.
When Captain Sinbad and Quinius are battling the ten headed dragon there are times you can see wires controlling it.
At the beginning of the movie, during the introduction of the city (scanning of the city - models) and when the camera moves upwards to the higher spires you can see at the upper right edge of the screen the corner of the backdrop where it ends.