Food in Peter Greenaway’s films is more often rotting than wholesome (e.g., see also A Zed and Two Noughts). With its timeless kitchen, the film suggests that expensive dining and criminal activity have often been linked in London’s past. The Thief is a philistine who tears at his food, in contrast to the book-wormish Lover, with his sophisticated tastes, who is clearly doomed in a society like this. Ultimately, however, a revenge of sorts is dished out.
A tough call this, as there's only room for one cannibalism-related film in a Top Ten Food Films listing; so this stands in for Delicatessen, Eating Raoul, Ravenous, Sweeny Todd, Titus Andronicus, Soylent Green, Silence of the Lambs, Hannibal, Eat the Rich, Cannibal Hookers... (a Top Ten in their own right!).