Title: Vacanze di Natale
Content:  Vacanze di Natale is a 1983 Italian comedy film directed by Carlo Vanzina. It was shown as part of a retrospective on Italian comedy at the 67th Venice International Film Festival.
Title: Vacanze di Natale
Content: Jerry Calà as Billo, the pianist ; Christian De Sica as Roberto Covelli ; Karina Huff as Samantha ; Claudio Amendola as Mario Marchetti ; Antonella Interlenghi as Serenella ; Riccardo Garrone as Giovanni Covelli ; Rossella Como as Signora Covelli ; Guido Nicheli as Donatone ; Marco Urbinati as Luca Covelli ; Mario Brega as Arturo Marchetti ; Rossana Di Lorenzo as Erminia Marchetti ; Marilù Tolo as Grazia Tassoni ; Stefania Sandrelli as Ivana ; Roberto Della Casa as Cesare ; Paolo Baroni as Collosecco ; Licinia Lentini as Moira ; Moana Pozzi as Luana ; Clara Colosimo as Farmacista 
Title: Vacanze di Natale '90
Content:  Vacanze di Natale '90 (aka Christmas Vacation '90) is a 1990 Italian comedy film directed by Enrico Oldoini.
Title: Vacanze di Natale 2000
Content:  Vacanze di Natale 2000 (Christmas Vacation 2000) is a 1999 Italian comedy film directed by Carlo Vanzina.
Title: Vacanze di Natale '91
Content:  Vacanze di Natale '91 is a 1991 Italian comedy film directed by Enrico Oldoini.
Title: Vacanze di Natale '95
Content:  Vacanze di Natale '95 (also known as Christmas Vacation ’95) is a 1995 Italian comedy film directed by Neri Parenti.
Title: Vacanze di Natale a Cortina
Content:  Vacanze di Natale a Cortina is a 2011 Italian comedy film written and directed by Neri Parenti. The film features many cameos including Bob Sinclar, Renato Balestra, Edinson Cavani, Prince Emanuele Filiberto, Cesare Prandelli, Mara Venier and Simona Ventura. It grossed $14,847,186 at the Italian box office.
Title: Cinepanettone
Content: Vacanze di Natale ("Christmas Holidays"), directed by Carlo Vanzina (1983) 🇮🇹 ; Vacanze di Natale '90 ("Christmas holidays of 1990"), directed by Enrico Oldoini (1990) ; Vacanze di Natale '91 ("Christmas holidays of 1991"), directed by Enrico Oldoini (1991) ; Vacanze di Natale '95 ("Christmas holidays of 1995"), directed by Neri Parenti (1995) 🇺🇸 ; Vacanze di Natale 2000 ("Christmas holidays of 2000"), directed by Carlo Vanzina (1999 – celebrating the 3rd millennium) 🇮🇹 ; Merry Christmas, directed by Neri Parenti (2001) ; Natale sul Nilo ("Christmas on the Nile"), directed by Neri Parenti (2002) 🇪🇬 ; Natale in India ("Christmas in India"), directed by Neri Parenti (2003) 🇮🇳 ; Christmas in Love, directed by Neri Parenti (2004) ; Natale a Miami ("Christmas 
Title: Vacanze di Natale a Cortina
Content: Christian De Sica as Roberto Covelli ; Sabrina Ferilli as Elena Covelli ; Dario Bandiera as Lando ; Ricky Memphis as Massimo Proietti ; Valeria Graci as Brunella Proietti ; Katia Follesa as Wanda ; Giuseppe Giacobazzi as Andrea ; Ivano Marescotti as Ugo Brigatti 
Title: Natale a New York
Content:  Natale a New York (English Translation: Christmas in New York) is a 2006 Italian comedy film directed by Neri Parenti, with Christian De Sica and Massimo Ghini. It is the first film made by Neri Parenti after the artistic separation between Christian De Sica and Massimo Boldi. It earned $4,138,363 USD its first weekend and has earned over $26,293,647 USD since, proving to be a great success at the box office. According to Filmauro: "Natale a New York earned US $36,000.000 and was the highest box office result for the 2006 Christmas holidays.". The film was never released in the US and to this date has not yet been released with either English subtitles or distributed in Region 1 format for DVD or Blu-ray Disc play in the US. A Special Edition double DVD in PAL format (DVD Region 2) was also released sometime in 2007 in Italy and Europe containing not only the feature film but a second DVD containing extra behind the scenes footage, five deleted scenes, video from the Premier Event in Italy as well as two 'TV Spot' Trailers. To date this film has not been released on the Blu-ray Disc format.

Question: Who was the screenwriter for Vacanze di Natale?
Answer: Carlo Vanzina.