On a side note, just because actors tell you they think the script is great when you offer them the part, doesn't actually mean they think the script is great. It's just...what are you going to say? "I don't like the script, but if you can possibly get a monkey with steady hands to point the camera at me for a minute while I do MY lines, I might get something decent out of it for my reel"...?
Everybody's script is great, when you're reading for a part in it. Also, every producer's early movies were great and you loved them, every director has an incredible eye and instinct for storytelling, and every washed-up actor you work with really influenced you in ways you can't even begin to describe....
gelder
Which is why an outsider like a script consultant who analyzes scripts for writers to send to studios is a better judge than an actor or people new to film making.