He has mentioned Silence of the lambs in several of his movies.
1.There`s Dumb and Dumber when he says:"I'd like to eat her liver with some fava beans and a bottle of Chianti." and than they make that sound Hannibal made.
2.Ace Ventura:
I just visited Ray Finkle's place.
And?
Cozy, if you're Hannibal Lecter.
3.In The Cable Guy he puts chicken skin on his face and imitates Sir Anthony.
Is that a coincidence?