I found the film’s release date, but I can’t verify an exact production start and wrap date from the available source data alone. Scooby-Doo was released on June 14, 2002, and one source notes that development was underway by 1994, with the film officially greenlit in October 2000.

What can be confirmed

  • The movie’s theatrical release date was June 14, 2002.
  • A production history source says producer Charles Roven began developing a live-action Scooby-Doo treatment in 1994.
  • The same source says Warner Bros. officially greenlit the film in October 2000.

What is not clearly confirmed

  • I do not have a sourced exact “production start date.”
  • I also do not have a sourced exact “finished production by date.”

Best supported estimate

Based on the release date and the usual post-production timeline for a studio film of this type, principal photography likely wrapped before mid-2002, but I can’t state a precise completion date without a stronger production record.

Item| Verified status| Date
---|---|---
Release in theaters| Verified| June 14, 2002 5
Development began| Verified| 1994 4
Official greenlight| Verified| October 2000 4
Exact production start| Not confirmed| Not available from current sources
Exact finished production date| Not confirmed| Not available from current sources

TL;DR: Scooby-Doo was released on June 14, 2002, development began in 1994, and the film was greenlit in October 2000, but the exact start and finish dates of production are not clearly confirmed in the sources I found.