While You Were Sleeping (1995)

When Lucy's crush falls on train tracks, she jumps down and rescues him and then is mistaken for his fiancee by his family. While he lies in a coma, she grows to love his family and they accept her with open arms. 

It's incredibly heartwarming and romantic while managing to be more than a little ridiculous. But I will always grade movies that are either for Christmas or children more generously than others. Not that this needs a whole lot of nudging -- it'd be a thumbs-up even if it were set in summer.

B+