Bedrockgames
I post in the voice of Christopher Walken
Well the point of the saying is that it's impossible not to depict war, or violence, as glamorous for some people. I remember watching the film Savior - Savior (film) - Wikipedia - I thought it was a great message against ethnic conflict (I grew up in Northern Ireland) and pro-peace. But I can imagine some people taking very different messages from it - "those guys are evil, look what they did to us", or even "massacring your enemies is fun!"
I understand what they are trying to say. But it is a very sneaky term in my view because it takes something quite obvious: some people misunderstand the meaning of a movie and take the opposite message from it than was intended (which is fair) and turns it into the bold declaration that there is no such thing as an anti-war movie: as if the small number of people who misinterpret an anti-war film outweigh the larger portion of people who grasp it. Haven't seen Savior so I can't comment on that one specifically.
And generally on the glamorization of violence. I think more often, which I think is not so prevalent in anti-war movies, the purpose and result of that is cathartic rather than the promotion of violence itself. I love watching violent gangster films, violent hong kong action films, but I don't take those into the real world with me. If anything, I feel less inclined towards anger or aggression after watching them.