Complex sentence: In the movie, the character of Whitacre is portrayed as illustrating bizarre behavior, such as often being delusional, manic, compulsively lying, and it was eventually learned that Whitacre was suffering from bipolar disorder.
Split into simpler sentences: In the movie, the character of Whitacre is portrayed as exhibiting bizarre behavior, including delusions, mania, and compulsively lying. It was eventually learned that Whitacre was suffering from bipolar disorder.