As always in movies, the distance between the protagonist escaping by foot and the antagonists chasing them in a motor vehicle makes no sense and keeps changing.
The "pressure wound" on the protagonist's neck is not consistent with the short amount of time the rope was pushing on the skin: it should have been red, not deep and yellowish as if it were a "bed sore" going on for days.
The sounds used for the firing of the Maschinenepistole 40 are not accurate and are more similar to larger-caliber firearms.
Near the film's end, Sonja is driving away in a Kubelwagen loaded with the gold when a U.S. Sherman tank destroys the vehicle. The U.S. infantrymen who examine the wreckage are wearing shoulder patches for the 92nd Infantry Division. This unit was primarily made up of Black men (the unit was officially classified as "Colored" at that time). However, the 92nd served only in Italy and never got anywhere near Germany.
When Paule asks Elsa what she is doing, she replies "Alles gut!" (literally: "all good" in German). However, this phrase only came to use in German from 2010 onwards and quickly became so overused it mostly has a passive-aggressive and/or ironic meaning, similar to "No worries!" in English.
When the Allied planes strafe the village, the protagonist takes cover by a Ford 8n tractor. The 8n, wasn't produced until 1948 and would not have been available to Germans during World War 2.
Von Starnfeld does not send his men straight away to the farm to avenge his second in command but (conveniently for the protagonists) waits until the next morning.
The baddies have been trying to shoot the protagonist dead for almost 3 minutes straight when Von Starnfeld tells his men "I want him alive".