Parviz Davayi (پرویز دوایی) has been a Writer in some movies:

The Big City is about that The mother is worried about her daughter Soraya's association with Hamid, an unemployed young man. The mother convinces Hamid by talking and advising him to stay aw ...ay from her for Soraya's happiness. After that, Iraj, Hamid's friend, gets in Soraya's way and Soraya pushes him away. Iraj tempts Hamid to break into the company's safe. During the robbery, he cleverly pushes Hamid forward, and when the police officer arrives, he reveals that he reported the robbery to the police in order to reach Soraya. Hamid meets a man in Soraya's apartment after his release from Jalo prison, and thinking that the man is having a relationship with Soraya, he knocks the girl off her feet and then beats up Iraj. Hamid meets the same man again and finds out that he is Mehri's fiancee, and that he is unnecessarily suspicious of him and Soraya. He thinks about the bitter fate of himself and his fiance with a sad expression. In this film Parviz Davayi (پرویز دوایی) collaborates with Gholam Ali Nabipoor (غلام علی نبی پور), Maliheh Nazari (ملیحه نظری), Fereydoun Reypour (فریدون ری‌پور), Akbar Khajavi (اکبر خواجوی), Soraya Bekiasa (ثریا بکیاسا), Gregory Marc (گریگوری مارک), Garsha Raoofi (گرشا رئوفی), Babken Avdisian (بابکن آودیسیان), Robert Ekhart (رابرت اکهارت), Ali Delpazir (علی دلپذیر), Vartan Chaparian (وارطان چاپاریان)

The Wedding Suit is about that A woman orders a suit from a tailor for her young son to wear to her sister's wedding. The tailor's apprentice, together with two other teenage boys who work in the same building, devise a plan to try on the suit at night to see what it feels like. Things get a little complicated but in the morning, can they return the suit in time? In this film Parviz Davayi (پرویز دوایی) collaborates with Abbas Kiarostami (عباس کیارستمی), Mousa Afshar (موسی افشار), Changiz Sayyad (چنگیز صیاد), Ebrahim Forouzesh (ابراهیم فروزش), Mohammad Fassih - (محمد فصیح), Mehdi Nekouei - (مهدی نکویی), Masoud Zand - (مسعود زند), Firooz Malekzadeh (فیروز ملک زاده), Babak Kazemi (بابک کاظمی), Reza Hashemi (رضا هاشمی)

Hengame is about that Two sisters from an aristocratic family fall in love with the son of their driver. Finally, the little sister retreats for the oldest sister to get married to him. In this film Parviz Davayi (پرویز دوایی) collaborates with Behrouz Vossoughi (بهروز وثوقی), Esfandiar Monfaredzadeh (اسفندیار منفردزاده), Samuel Khachikian (ساموئل خاچیکیان), Abbas Nazeri Nik (عباس ناظری نیک), Nosratollah Kani (نصرت الله کنی), Mirza Goodarzi (میرزا گودرزی), Mohsen Sadeghi (محسن صادقی), Nezamoddin Kiaie (نظام‌الدین کیایی), Ali Abassi (علی عباسی), Azar Shiva (آذر شیوا), Jamileh (جمیله), Ramesh (رامش), Shahin Khalili (شهین خلیلی), Vahan Aghamalian (واهان آقامالیان), Hassan PakNejad (حسن پاک‌نژاد)