Mediocre action flicks are like a salad bar. They all have that big bowl of iceberg (guns), but after that, it’s interchangeable fixins. In “Agent Game” (2022), the filmmakers added olives (black sites), tomatoes (expendable operators), shredded cheddar (CIA conspiracies), pickled beets (Mel Gibson) and of course, ranch dressing (double-crosses). Plot twists are croutons. Normally, it would be a semi-interesting way to waste 90 minutes when there’s nothing else on TV, or fine Saturday-nap-inducing fare. Except for the insult. (Spoiler Alert!) The film concludes like a feature-length pilot for a 1990s TV series. Seriously? I was watching a commercial? C’mon!