When speaking in Arabic, Tawfiq pronounces some words with the Egyptian Arabic pronunciation, and some words with the Palestinian Arabic pronunciation. Being an Egyptian, he should talk in Egyptian Arabic dialect all the time.
When Tewfiq tells Khaled they have a long day tomorrow in Dina's apartment, Tewfiq is shown putting his hand on Khaled's shoulder in the shot from behind Khaled, but in the shot from the front, Tewfiq is seen holding Khaled's upper arm.
During one scene, a long hair or piece of fluff can be seen hanging off the boom mic and bouncing as it catches the light.