The Da Vinci Code is a 2006 mystery thriller film directed by Ron Howard, written by Akiva Goldsman, and based on Dan Brown's 2003 novel of the same name. The first in the Robert Langdon film series, the film stars Tom Hanks, Audrey Tautou, Ian McKellen, Alfred Molina, Jürgen Prochnow, Jean Reno and Paul Bettany. In the film, Robert Langdon, a professor of religious symbology from Harvard University, is the prime suspect in the grisly and unusual murder of Louvre curator Jacques Saunière. On the body, the police find a disconcerting cipher and start an investigation.[3] Langdon escapes with the assistance of police cryptologist Sophie Neveu, and they begin a quest for the legendary Holy Grail. A noted British Grail historian, Sir Leigh Teabing, tells them that the actual Holy Grail is explicitly encoded in Leonardo da Vinci's wall painting, The Last Supper. Also searching for the Grail is a secret cabal within Opus Dei, an actual prelature of the Holy See, who wish to keep the true Grail a secret to prevent the destruction of Christianity.
Lobby Cards are promotional photographs printed on cardstock paper. They were meant to be displayed in the massive lobbies of movie palaces before the film came out.
Lobby cards fall into the broad collectible category of 'paper ephemera'. Paper ephemera encompasses anything printed on paper and intended for the trashcan. And unlike a lot of ephemeral collectibles, Lobby Cards died out before the collector market really took off.
This means that the supply never had a chance to get over-saturated. Even genuine one sheet movie posters tend to be over-printed these days! This means that lobby cards remain highly collectible to this day.