Casey Affleck on "The Good Mother" (1988)

Hi.

Casey Affleck mentioned in a podcast that he was an extra on "The Good Mother" (1988) ( https://www.imdb.com/title/tt0095238/ ), that was also shot in a Boston area. "Running across the street" (perhaps "behind" Diana Keaton - since Affleck can't remember the name and says "Diana Lane") may have been his "first on-screen appearance". I guess the actor would be around 12-years-old at the time of filming.

I don't personally want to add these type of credit before I can confirm that the actor is actually on the screen (and IMDb probably requires that proof anyway), but I thought that maybe someone has access to this film and want to check it out.