This exchange between Martin and Renfield in the 1931 film:
Martin: Ain't you ashamed now? Ain't you? Spiders now, is it? Flies ain't good enough!
Renfield: Flies? Flies?! Poor puny things! Who wants to eat flies?!
Martin: You do, ya loony!
Renfield: Not when I can get nice fat spiders!
Martin: All right, have it your own way.