Question: When did the first films for the universe containing the Arrowverse start production?

<P0-S0> Santa Santita, or Magdalena, The Unholy Saint, is a 2004 Filipino film starring Angelica Panganiban and Jericho Rosales, directed by Laurice Guillen. <P0-S1>  The film follows Malen, the daughter of an intercessor, her love affair with a hustler and gigolo, and her confrontation of the evil within her life. <P0-S2>  Based on a script by Jerry Gracio, the film was picked up by Guillen in 2000 but did not start production because an appropriate actress for Malen could not be found. <P0-S3>  After picking Panganiban, Guillen began work, and the eventual film was released on November 17, 2004, in the Philippines and March 11, 2005, internationally. <P0-S4>  Receiving good reviews from "Variety" and the "Philippine Daily Inquirer", "Santa Santita" was one of only two films to be rated as Grade A by the Cinema Evaluation Board of the Philippines, and represented the Philippines at the Asiaticafilmediale festival in Italy and the Bangkok International Film Festival. <SEP> <P1-S0> The Arrowverse is a shared fictional universe that is centered on television series airing on The CW, developed by Greg Berlanti, Marc Guggenheim, Andrew Kreisberg, Phil Klemmer, and Geoff Johns, based on characters appearing in publications by DC Comics. <P1-S1>  The shared universe, much like the DC Universe in comic books or the cinematic DC Extended Universe, was established by crossing over common plot elements, settings, cast, and characters. <P1-S2>  The Arrowverse stars Stephen Amell as Oliver Queen / Green Arrow, Grant Gustin as Barry Allen / Flash, Megalyn Echikunwoke as Mari Jiwe McCabe / Vixen, with an ensemble cast leading "Legends of Tomorrow", including Arthur Darvill as Rip Hunter, Caity Lotz as Sara Lance / White Canary, Brandon Routh as Ray Palmer / Atom, Dominic Purcell as Mick Rory / Heat Wave, with Victor Garber and Franz Drameh as Martin Stein & Jefferson "Jax" Jackson / Firestorm. <P1-S3>  Russell Tovey stars as Ray Terrill / The Ray. <SEP> <P2-S0> Gabriel Scognamillo (27 October 1906 – 31 May 1974) was an Italian art director. <P2-S1>  One of the first films he worked on was Jean Renoir's provocative 1931 film "La Chienne". <P2-S2>  Two years later he had moved to Hollywood where one of his first films there was MGM's production of "The Merry Widow" (1934) with Maurice Chevalier and Jeanette MacDonald. <SEP> <P3-S0> The Justice League Universe (JLUDCEUUJLDCE), more commonly known by its unofficial name as the DC Extended Universe (DCEU), is an American media franchise and shared universe, centered on a series of superhero films distributed by Warner Bros. <P3-S1>  Pictures, based on characters that appear in publications by DC Comics. <P3-S2>  The shared universe, much like the original DC Universe in comic books, was established by crossing over common plot elements, settings, cast, and characters. <P3-S3>  The films have been in production since 2011 and in that time Warner Bros. has distributed four films with more than ten in various stages of production. <P3-S4>  The series has grossed over $3.1 billion at the global box office, currently making it the seventeenth highest-grossing film franchise.