Here are a couple photos showing her in the movie!
no it doesn't its there for a purpose and that's to stop the church being hit by lightning if it wasn't there and was hit by lightning the power it creates would damage the church most buildings have conductors it send the power to earth
If you fit one you will have to carry a clear one, you really can't see much at night (or even approaching dark) with a tinted one.
your local bike shop can get you on and show you how to change it its easy
Beware of cheap Chinese helmets. Not only are they unsafe, they are also hard or impossible to get spares for.