For those of you wondering if the audition is "worth" attending I'd suggest going. Go and be seen. Theatre jobs aren't growing on trees these days and if you feel you're a fit for the show you shouldn't let the opportunity pass. Open call or no open call. It could end up being totally "worth" it.
"All our dreams can come true -- if we have the courage to pursue them." -- Walt Disney
We must have different Gods. My God said "do to others what you would have them do to you". Your God seems to have said "My Way or the Highway".