Complex Magazine came up with a hilarious list of 50 most racist movies of all time. It's not meant to be taken seriously, but it's worth checking out. One example of how they explain the "racism" is the number 37 racist movie of all time. Adam Sandler's "Billy Madison"
37. Billy Madison
Grown-ass grade schooler Billy Madison (Adam Sandler) is basically retarded in this movie, but that's not why it's offensive. His horny, obese black maid, who would service his every need, from lunch to, um, other stuff ("Ah thought AH was yo' snack pack, Billy!") still has Hattie McDaniel turning in her grave.