What was the movie from the early 2000's or 1990's, about priest discovering Christia.nity was not true by archaeologic finds in Jerusalam

Please try to be more specific. Saying 'Christianity was not true' is not meaningful, since it's present to this day all around the world. Perhaps you mean the historical record shows some differences in the old stories of Jesus.

The Body (http://en.wikipedia.org/wiki/The_Body_%282001_film%29)