I've restored the links to the specific subject-area year articles, since such linking is considered appropriate when it offers relevant informationand the contextual cultural field within which a film or play was received is clearly a relevant context. The notion that a year link within a sentence about a film that goes to that year in film is an easter egg doesn't make any sense to me.   

I am sorry you don't understand what an Easter egg is. Perhaps if you begin by reading our article on it and then the guideline which advises against this type of use, you will be in a better position to debate this. You might also follow my suggestion to raise this in talk; it is far from obvious to me what the benefit of these hidden links is, for example.