great film but was he really stuck in purgatory for 10,000 years
That was in one of the original drafts or something as I recall.
Correct, in the film I believe he was there for a year or so although I don't think it was specifically mentioned.
Bill Groundhog-Day, Ghostbustin'-ass Murray
To me, this movie had one of the GOAT Bill Murray performances:
....didn't I tell you....to call me Ernie....or Big Ern