the cast have reportedly received 'significant raises'
the special airs on April 21
the screenwriter and 'Grey's Anatomy' actress debated on Twitter over show
ABC series comes off as gay TV for a straight audience
the character was not originally written as transgender
'That was just for the cameras'
Screenwriter Dustin Lance Black aimed for ‘honesty’
the mini-series will be pushed back by one night
the screenwriter says he wrote the show for everyone
ABC show gives first look at LGBT rights movement
