The first scene in the movie has Kathy in a hospital saying she's a "carer", but I thought she was saying "carrier", and figured she had contracted AIDS, then she mentioned donors and I was mystified how someone with AIDS could be a donor. So the beginning of the film didn't clue me in at all. This role is a good fit for Mulligan's quiet strength and independent maturity. Knightley truthfully conveys someone desperate to create love during her short life span. Garfield, who plays a heart wrenching, too sweet imbecile in this film