I still have one of those Old Hickory blades as a working knife (the stiff boning blade, about seven inches long and utterly useful - as long as you keep it away from saltwater...). I can actually sharpen it to a much better edge than my working butcher knives (stainless Forschner blades in curved "breaking style" blades, a 10" and a 12" "scimeter"). That said most of what we see on the tube or the big screen is from myth - not reality. Can't remember which movie maker said it but believe it went - when myth and truth conflict - tell the myth... I guess it sells better.
That goes double for any scenes where some skilled hombre uses a throwing knife (like most, when I was a kid I practiced diligently throwing otherwise good knives at boards, trees, anything stationary that the blade might stick in)...
It wasn't until years later I learned that tossing away a perfectly good weapon wasn't exactly a great idea... It's well to remember that every witness to a real "knife fight", stabbing, or cutting that I ever interviewed over 22 years... never even saw the weapon in use - and they were looking at the action from close range... That doesn't exactly mean that "big, bad blades" aren't used in conflicts - just not the majority of the time...
It was sure easier as a kid to believe what you saw in the movies...