Other mistake: After the decontamination chamber scene, Bond and Honey drink a cup of coffee. Honey very quickly passes out due to the tea being laced with some type of sleep inducing drug. However, as Bond throws his cup in anger, Honey flinches very hard. Surprising considering how quickly she passed out after drinking the coffee. (01:20:15)
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.