Libby Tucker hitchhiked from Brooklyn to taNeil Simon based his screenplay for I Ought to Be in Pictures on one of his more serious theatrical pieces. Walter Matthau is top-billed as Herbert Tucker, a struggling screenwriter who suddenly finds his 19-year-old daughter, Libby(Dinah Manoff), on his Hollywood doorstep. Having deserted his family years earlier, Herbert isn't keen on having his daughter around to cramp his lifestyle, which at this point consists of drinking his meals and telling lies to his faithful girlfriend, Stephanie (Ann-Margret). Libby takes it upon herself to put Herbert's life in order. There are plenty of angry outbursts and recriminations between father and daughter before the tearful, upbeat conclusion. Incidentally, Dinah Manoff is the daughter of actress Lee Grant, who'd previously co-starred with Walter Matthau in Neil Simon's Plaza Suite -- which, like I Ought to be in Pictures, was directed by Herbert Ross.ke Hollywood by storm. And her father by surprise.