There is something irresistible about a movie that begins with a wedding (think of “The Godfather”), and there are few movie weddings as beautiful as the one at the start of “Mother of George,”Andrew Dosunmu’s gorgeous and delicate new drama. The party, a swirl of color, music and sentiment, observed with an eye for telling details of behavior, sets the tone — exuberant, dignified, a little bit anxious — for what is to follow.
