What is the fine-grained topic of the following text: On Saturday at 2pm the Mayor of Westhoughton, Cllr Brian Clare, will unveil a plaque outside Westhoughton town hall in memory of Shaw - best known for his role as the shark hunter Quint in the phenomenally successful movie Jaws. Only return the topic.
Unveiling of a commemorative plaque in memory of Shaw by the Mayor of Westhoughton.