She barely speaks more than 3 or 4 lines! I think she was fulfilling an obligation to Harvey and Bob Weinstein who are executive producers for this film.
(Sources : Adrift:The Sea We Were Together ) Adrift:The Sea We Were Together Shailin Woodley It doesn't sit well with Richard, or Susan's quasi-boyfriend (Sands). Grant's comic timing and mastery at underplaying is evident here as he reluctantly dates Susan, even dressing down and switching cars with her boyfriend to disillusion her.
I am not going to talk about the plot or the story, as most of it is taken from the original, if you are reall..........