This film offers a convincing argument for this view with historical and anecdotal evidence to support these claims, but the centerpiece for the argument of Beyond Belief is the Gospel of Thomas.
The producer says that this gospel contains the esoteric knowledge taken directly from the Vedas. The Gospel of Thomas itself is the Holy Grail. Beyond belief is the sequel beyond me.
See the complete trilogy of films, Beyond Me, Beyond Belief and Beyond
Reason at http://www.beyondmefilm.com