I dnt think so palak..they r usually legally bound by contract.. if its in their contract that they have read script and agree to it for this period of time, then it could destroy their career to go against it..
Yes they r bound by the contract
But no one has right to hurt religious sentiments, bcoz at the end it is actors who bear the brunt not the writers as they r on screen.
The court or any adm. will support the actors if they denies or question it.
Trolling bhi actors ki hoti hain writers ki nahi,