The only sad thing for me is that every time I watch this film I am reminded that their likes will not be seen again.
I am a little bit puzzled by "their likes" in the above sentence. I presume that the author wants to say he is reminded that movies of the same quality as the mentioned one will not be seen again. But why the possesive pronoun "their"? I would await "its like" which is related to the referred movie.