It's made to seem as if "Nikki", which opened in 1931, was Cary Grant's first play and that he was poor, but he already had been in numerous shows since 1927, owned a 1927 Packard sport phaeton, and made as much as $350 a week in some shows.
At 15 minutes, Dyan Cannon takes a call from Cary Grant while she's in a rehearsal room. The year is 1962. The pay phone she speaks on features push-button dialing. Touch-tone phones were not introduced until Nov. 18, 1963, and only in limited areas (Pittsburgh PA).
Cary Grant talks about his second marriage ending (which lasted from 1942 to 1945), but then he goes to see his father in England and finds out his mother is still alive. But his father died in 1935. Grant learned that his mother was still alive from his father confessing to the lie shortly before his own death. Grant made arrangements for his mother to leave the institution in June 1935.