The Greatest DVD, 2009

Pierce Brosnan and Susan Sarandon star as an affluent couple whose well-ordered life is shattered when their eldest son is killed in a car crash. It's nothing that anyone can prepare for, and this pair, with their happily calibrated life, are particularly susceptible to disaster. The mother becomes obsessed with the minutiae of her son's last moments, most severely by trying to rouse the driver of the other car out of a deep coma. The father tries to remain strong, seeking sanctuary in the recesses of his professorial, mathematical mind. The horrible accident further exacerbates their younger son's feelings of alienation and inadequacy.

Then a young woman (Carey Mulligan) appears and claims that she is carrying their late son's baby.