Complex sentence: In the movie Bertier is paralyzed in a car accident near the end of the season, while Bertier did get paralyzed in real life the accident didn't occur until after the championships were over.
Split into simpler sentences: In the movie, Bertier is paralyzed in a car accident near the end of the season. While Bertier was paralyzed in real life, the accident didn't occur until after the championships were over.