Other mistake: In the early part of the movie, Rommel is addressing his Officers on the Atlantic Wall. The "mid-shots" and "close-ups" are shot against a back projection. Rommel turns to view the sea/horizon and the view is exactly the same as their "mid-shots". The effect is a horrendous "jump-cut".
Other mistake: It's settled that Lawrence takes 50 of Prince Faisal's men with him to fight the Turks in Akaba (as long as they get there through the burning desert). But to my calculations there's only 32 men riding with him, plus those young servant wannabe's who (without permission) follow the party.