There are directors who at first look seemingly have a perfect career, but if you take a closer look at their filmography you will find a few stinkers.
Because if you make films for long enough then it doesn't really matter how great you are, eventually everyone makes a bad film
- ToC
Personal note: I don't consider Hitchcock's Family Plot as a bad movie. It wasn't classic like Psycho, Vertigo etc. But it was 100 times better than movies he made in early of his career like Pleasure Garden, Ring, Downhill, Number 17