I'm not disputing the timing of her comments, but that she finally admitted that he could act. I'm sure Olivia always suggested such to her BF, but that Bette was stubborn not to admit it.
It's not among my Flynn favorites, but it has Olivia and Bette too so I'll definitely be buying it. The movie always reminds me about that conversation Olivia and Bette had about Flynn, when they watched this movie together after Flynn's death.