The aircraft that buzzes the Bedouin attackers is a MH.1521 Broussard only developed in the mid-1950s and not available during the North African campaign.
The uniforms worn by the German troops, US troops and the Moroccan police, as well as the British uniforms worn by the Germans, are more modern than the 1942 setting.
The non-Arabic clothes worn by Faddja and Simone are 1960s styles, not 1940s.
In the view from the hotel balcony when the Germans go to attack the 'Big Three', there are several modern buildings seen.