You're using generalised descriptors rather than using genre-specific descriptors. You've also used the reduced-content version of that dictionary.
From another, respected, dictionary:
http://dictionary.cambridge.org/define.asp?key=11672&dict=CALD
Using your method, Postman Pat Goes To The Fair and Backdoor Adventures 4 would both be films, which they are, but you wouldn't use them against each other as a means of discussing film, unless you were explicitly discussing something such as the range of imagery available, or the levels of censorship, etc.
However, you were trying to liken the violence and gore in Watership Down to Bugs Bunny, which would be like trying to compare the hug between Postman Pat & Mrs Muggins in Postman Pat Goes To The Fair and the Reverse Cowgirl Anal in Backdoor Adventures 4. Different genres, which is where "Watership Down is an animated film" comes in. It's a question of genre, which is why I said you were showing your ignorance of the subject: If you knew what you were talking about, you would have understood the context of the statement.
Like I said, after watching Urotsukidoji II (unpleasant doesn't even begin to cover it), I doubt you'd have the same point of view. Nor if you'd spent more than 10seconRAB studying the subject on Google
The chances of him asking to see it are very slim indeed, as are the chances of him asking to see Dog Soldiers. Even less so at 3.
So yeah, it'd be throwing it in his face.