Herman Yau directed the film and it starred Dennis To as Ip Man.

Entity and relation annotations:
id: 0
type: entity
value: text: Herman Yau
labels: <Person>
id: 1
type: entity
value: text: Dennis To
labels: <Person>
id: 2
type: entity
value: text: Ip Man
labels: <Person>
type: relation
to_id: 1
labels: Person:business/work:Person
from_id: 0