"Baldwin was actually what made me think of Arsenic. I was watching his brilliant comedic timing on a 30 Rock episode and thought 'I wish he could play a really madcap comedy part- a Cary Grant part."
Actually, he's already played the role. Back in 2000, City Center was floating an idea of an Encores-style concert reading of plays. Arsenic and Old Lace was the play that was done with Baldwin, Celeste Holm and Joanne Woodward. Unfortunately the idea didn't take off like the musicals did.
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If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.