I always forget that Emily Mortimer and Kelly Macdonald were Cate Blanchett's right-hand (and left-hand) girls in Elizabeth (1998).
(And Daniel Craig was in it, too!)
None of those ladies had to wait long for their careers to blossom... though in the case of Emily & Kelly maybe the careers should've blossomed more spectacularly. Aren't they great? Lovely & Amazing Emily can next be spotted in the comedy Our Idiot Brother (opening in August) and Kelly is playing "The Grey Lady" (aka Helena Ravenclaw) in Harry Potter and the Deathly Hallows: Part 2 (opening... well, you know when.)