Complex sentence: The MPPDA also instituted a code of conduct for actors in Hollywood films governing their behavior offscreen, and sought to protect American film interests abroad by encouraging film studios to avoid racist portrayals of foreigners.
Split into simpler sentences: The MPPDA also instituted a code of conduct for Hollywood's actors in an attempt to govern their behavior offscreen. Finally, the code sought to protect American film interests abroad by encouraging film studios to avoid racist portrayals of foreigners.