In life and in the movie, Harrer left for Nanga Parbat when his wife was still pregnant.
While his wife was still pregnant, Harrer left for Nanga Parbat.
mnli hypothesis: While his wife was still pregnant, Harrer left for Nanga Parbat. premise: In life and in the movie, Harrer left for Nanga Parbat when his wife was still pregnant.