The limit of the Willing Suspension of Disbelief for a given element is directly proportional to its degree of coolness.
Stated another way, all but the most pedantic of viewers will forgive liberties with reality so long as the result is wicked sweet and/or awesome. This applies to the audience in general, as there will naturally be a different threshold for each individual in the group.
I’m striving to make the game dramatic, adventuresome, and fun rather than realistic, so players may feel free to try some truly awe-inspiring (or, perhaps, awfully foolish) stunts for the sake of pulling off something really cool. Now, I'm not talking about wire-fu antics, but I will say that the Pirates of the Carribean films are a good idea of what I am shooting for.