Valentín is a 2002 Argentine-French-Italian drama film written and directed by Alejandro Agresti.
 The film features Rodrigo Noya as Valentín and Carmen Maura as the grandmother.
 Director Alejandro Agresti also stars as Valentín's father.
The Lake House is a 2006 American romantic drama directed by Alejandro Agresti and starring Keanu Reeves, Sandra Bullock and Christopher Plummer.
 It was written by David Auburn.
 The film is a remake of the South Korean motion picture "Il Mare" (2000).
 The story centers on an architect living in 2004 and a doctor living in 2006.
 The two meet via letters left in a mailbox at the lake house they have both lived in at separate points in time; they carry on correspondence over two years, remaining separated by their original difference of two years.
Jan de Bont (born 22 October 1943) is a Dutch cinematographer, director and film producer.
 He is widely known for directing the 1994 action film "Speed" starring Keanu Reeves and Sandra Bullock and the disaster film "Twister".
 As a director of photography, he has shot numerous blockbusters and genre films, including "Cujo, Flesh and Blood, Die Hard, The Hunt for Red October" and "Basic Instinct."
Johnny Mnemonic is a 1995 Canadian-American cyberpunk action thriller film directed by Robert Longo in his directorial debut.
 The film stars Keanu Reeves and Dolph Lundgren.
 The film is based on the story of the same name by William Gibson.
 Keanu Reeves plays the title character, a man with a cybernetic brain implant designed to store information.
 The film portrays Gibson's dystopian view of the future with the world dominated by megacorporations and with strong East Asian influences.
 This was Dolph Lundgren's last theatrically released film until 2010's "The Expendables".
Buenos Aires Vice Versa (Spanish: Buenos Aires viceversa ) is an 1996 Argentine and Dutch dramatic film, written and directed by Alejandro Agresti.
 The film was produced by Alejandro Agresti and Axel Harding, and co-produced by Emjay Rechsteiner.
Alejandro Agresti (born June 2, 1961 in Buenos Aires) is an Argentine film director, writer and producer.
 A prominent filmmaker in his country, he also directed "The Lake House" with Hollywood actors Sandra Bullock and Keanu Reeves in 2006.
La cruz is a 1997 Argentine drama film directed by Alejandro Agresti.
 It was screened in the Un Certain Regard section at the 1997 Cannes Film Festival.
The Act in Question (Spanish: "El Acto en cuestión" ) is a 1994 Argentine film directed and written by Alejandro Agresti.
 The film starred Carlos Roffé and Sergio Poves Campos.
 The film was also released in the Netherlands and Portugal.
 It was screened in the Un Certain Regard section at the 1993 Cannes Film Festival.
Charles Barton (May 25, 1902December 5, 1981) was a film and vaudeville actor and film director.
 He won an Oscar for best assistant director in 1933.
 His first film as a director was the Zane Grey feature "Wagon Wheels", starring Randolph Scott, in 1934.
Speed is a 1994 American action thriller film directed by Jan de Bont in his feature film directorial debut.
 The film stars Keanu Reeves, Dennis Hopper, Sandra Bullock, Joe Morton, Alan Ruck, and Jeff Daniels.
 It became a surprise critical and commercial success, winning two Academy Awards, for Best Sound Editing and Best Sound Mixing, at the 67th Academy Awards in early 1995.
 The film tells the story of an LAPD cop who tries to rescue civilians on a city bus rigged with a bomb programmed to explode if the bus slows down below 50 mph.

Question: Who directed "The Lake House" with Hollywood actors Sandra Bullock and Keanu Reeves in 2006, Alejandro Agresti or Charles Barton?
Answer: Alejandro Agresti