So - tz myth. Maybe the one w buster keaton? Its a time travel one. Or the braggart, with andy devine always telling tall tales. Thats one of my favorites. Its kinda like the boy who cried wolf. There is also a casey at the bat - the perfect ball player. Or the global warming one might be timely.

Does it have to be tz? How about ray bradbury's a sound of thunder? Altho they might have had that in high school. But also timely. The butterfly effect, ya know.

I dont have a good feeling for what myth is.