Complex sentence: In an interview with MSNBC, While Lucas expressed his excitement about the film and amazement at Denzel Washington's portrayal, he admitted to several news outlets that only a small portion of the film was true, and that much of it was fabricated for narrative effect.
Split into simpler sentences: In an interview with MSNBC, Lucas expressed his excitement about the film and amazement at Denzel Washington's portrayal. However, Lucas admitted to several news outlets that only a small portion of the film was true, and that much of it was fabricated for narrative effect.