Question: What profession did Greg Mottola and Paul Czinner have in common?

Context articles: The Way of Lost Souls
The Fiddler of Florence
Ariane, jeune fille russe (film)
Greg Mottola
The Loves of Ariane
Dreaming Lips (1932 film)
The Rise of Catherine the Great
Paul Czinner
Dreaming Lips (1953 film)
Ariane (film)

The Way of Lost Souls is a 1929 British drama film directed by Paul Czinner and starring Pola Negri, Warwick Ward and Hans Rehmann.
 A prostitute and a lighthouse keeper fall in love.
 It is also known by the alternative title The Woman He Scorned.
 Location shooting was done around Mevagissey in Cornwall.
 It was the first film made in Britain by Czinner, who later settled there with his wife Elisabeth Bergner after being forced out of Germany by the Nazis.
The Fiddler of Florence (German: Der Geiger von Florenz) is a 1926 German silent comedy film directed by Paul Czinner and starring Elisabeth Bergner, Conrad Veidt and Nora Gregor.
 The film was shot on location in Italy.
 It premiered at the Gloria-Palast in Berlin.
 A girl escapes from her strict Swiss school and heads for Florence.
Ariane, jeune fille russe is a 1931 French-German drama film directed by Paul Czinner and starring Gaby Morlay, Rachel Devirys and Maria Fromet.
 It was a French-language version of the film "Ariane" made a co-production.
 It was adapted from the 1920 novel "Ariane, jeune fille russe" by Claude Anet.
Gregory J. "Greg" Mottola (born July 11, 1964) is an American film director, screenwriter, and television director.
 Mottola wrote and directed the 1996 independent film "The Daytrippers", then concentrated for several years on directing in television for series such as "Undeclared" and "Arrested Development".
 More recently, he has directed the feature films "Superbad", "Adventureland", and "Paul".
The Loves of Ariane is a 1931 British-German drama film directed by Paul Czinner starring Elisabeth Bergner, Charles Carson and Percy Marmont.
 It was an English-language version of the 1931 film "Ariane".
 It was based on the 1920 novel "Ariane, jeune fille russe" by Claude Anet.
 The screenplay concerns a young woman studying at University who falls in love with Don Juan.
 A German version of the film, "Ariane" was also made.
Dreaming Lips (German:Der träumende Mund) is a 1932 French-German drama film directed by Paul Czinner and starring Elisabeth Bergner, Rudolf Forster and Anton Edthofer.
 The film is based on the play "Mélo" by Henri Bernstein.
 As was common at the time, the film was a co-production with a separate French-language version "Mélo" made.
The Rise of Catherine the Great (also titled Catherine the Great) is a 1934 British historical film based on the play "The Czarina" by Lajos Bíró and Melchior Lengyel, about the rise to power of Catherine the Great.
 It was directed by Paul Czinner, and stars Elisabeth Bergner as Catherine, Douglas Fairbanks, Jr., as Grand Duke Peter, Dorothy Hale as Countess Olga, and Flora Robson as Empress Elizabeth.
Paul Czinner (30 May 1890 – 22 June 1972) was a Hungarian Jewish writer, film director, and producer.
Dreaming Lips (German: Der träumende Mund) is a 1953 German drama film directed by Josef von Báky and starring Maria Schell, O.W. Fischer and Philip Dorn.
 It is a remake of the 1932 film "Dreaming Lips" by Paul Czinner.
 Czinner had also remade the film in Britain in 1937.
Ariane is a 1931 German drama film directed by Paul Czinner and starring Elisabeth Bergner, Rudolf Forster and Annemarie Steinsieck.
 It is an adaptation of the 1920 French novel "Ariane, jeune fille russe" by Claude Anet.
 Two alternative language versions "The Loves of Ariane" and "Ariane, jeune fille russe" were made at the same time.
 The film was the inspiration of the 1957 Billy Wilder film "Love in the Afternoon".
 Wilder remembered the film as "touching and funny".