on this data that I found. Somebody had asked about this earlier, and I knew there was data on this topic, so I just wasted an hour at work making a Tableau viz that breaks this down.
Anyway, Leonardo DiCaprio's worst rated movie (based on IMDB User Rating) was The Man in the Iron Mask, which still scored a 6.5 rating. James McAvoy, Daniel Craig, Michael Caine, Daniel Radcliffe, and Al Pacino were the next best - their worst rated movies all had scores right around 6.0.
Based on the same data (which ranges from 1986-2016), Christopher Nolan is the best director of all time.
Data source:
https://www.kaggle.com/danielgrijalvas/movies