Rachel McAdams is sharing how motherhood influenced her latest film.ET's Rachel Smith spoke to McAdams at the screening of her new film, , based on the beloved novel by Judy Blume. In Blume's hometown of Key West, Florida, McAdams exclusively caught up with ET and shared how she approached the movie as a mom.«Coming to this as a mom was very different for me,» she shared. «To see through those eyes, you just remind yourself of what it was to be that age, and how hard it was.