I guess even the best can be wrong (Forward to 5:52-6:04):
It bummed me out to hear Fr. Barron get it wrong on Adam not being a literal figure. Maybe it was a slip up? Perhaps, but it's hard to interpret otherwise and I hope Fr. Robert Barron comes out publicly to correct himself or clarify what he meant; if he meant something other then what many seem to be interpreting out of it (even another priest in his own webiste corrected him).
Dave Armstrong references to a good article on this topic:
Adam and Eve: Defense of Their Literal Existence as the Primal Human Couple, by Catholic Philosopher, Dr. Dennis Bonnette