Indiana Jones and the Temple of Doom (1984)

While the entire Indiana Jones franchise solidified Harrison Ford as an action hero and is a classic today, this movie prompted the MPAA to create the “PG-13” rating for films due to its graphic nature. 

Knowing the memorable scenes that are pretty terrifying such as showing people eating monkey brains and ripping out the hearts of people while they’re still alive, there is no way this movie would have anything less than an R-rating.