She was entertaining her American ex-lover - without her husband present.A love triangle existed between Margot, Tony, and Mark.In the film""s first spoken words, as she poured him a drink, she referred to their secretive love relationship that had resumed after Mark had returned to the US about a year earlier - she believed (inaccurately) that her husband was oblivious to their past (and continuing) love affair.Plot SynopsisThe credits, accompanied by eerie music by Bernard Herrmann, play over Saul Bass"" amazing title sequence that combines both live action and animation.Oh dear, We are in trouble." The boys were reprimanded by Professor Severus Snape (Alan Rickman), head of the Slytherin House, for being seen by seven Muggles (non-magical folk) during their car misadventure, risking the exposure of their world to the outside, although reprieved by Headmaster Professor Albus Dumbledore (Richard Harris) and deputy Headmistress Minerva McGonagall (Maggie Smith), Head of the Gryffindor House (where Harry and Ron were members)."After the group of 13 and wizard Gandalf departed on ponyback from his hobbit hole, Bilbo reluctantly signed the contract and joined them (although most of the dwarves had wagered hat he wouldn""t).