Forrest Gump (1994)

Forrest Gump earned Tom Hanks his second consecutive Oscar. His portrayal of a mentally-challenged, Alabama man who witnesses some major historical events has become an iconic film with plenty of quotable lines. 

These days, there has been a big conversation about actors playing different races or genders. In all likelihood, while the movie makes you feel an endearment toward the title character, having Hanks play a mentally-challenged man some would find questionable.