Could it be used to cut other things like tomatoes or meats like salmon or a pot roast? I wonder if it's thin so that you can cut thin slices without it getting caught on the blade.Looks like a non serrated bread knife.
It's a slicing knife.
You're thinking like a cook. That particular knife might be germane to the story line rather than a kitchen function. That might be why the OP is asking how that particular knife would be used.Could you set the scene for us?
That might be more helpful.
I'm thinkin' for knife in general, you want to go with a
Chef's Knife, not a Bread Knife.
I mean if your going for authenticity in your film,
that's a go-to-knife in the kitchen.