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How to keep track of the disney vault
Research the disney vault system.
Disney's vault system means putting certain movies on a moratorium so that they are not available for purchase or digital viewing until they are released from the vault. Generally, disney puts movies in a seven-year vault hold and then releases them.
Disney's reasoning behind the release is that every seven years a new generation of 2-7 year old children comes of age and is ready to enjoy the films. Generally, two movies are released a year.