Oscar-winning director Ang Lee has praised his younger son Mason's performance in The Hangover Part II.
Mason plays Teddy, the teenager the lead characters try to rescue as they struggle to piece together what happened during a crazy night in Bangkok.
In footage posted on the Apple Daily website, proud dad Ang Lee told reporters after a screening in his native Taiwan: "My son's performance was quite good."
He added: "He is quite a serious actor but this is just a comedy."
Asked by one reporter whether Mason was a future Oscar winner, the elder Lee responded with a smile: "He only has a small role in the movie."
Ang demurred when asked if he would cast Mason in one of his movies. "I don't know. Kids should do whatever they want to do," he said.
His older son, Haan, played the toddler son of the family featured in Ang's 1992 directorial debut, Pushing Hands.
Despite a mixed reception from critics, The Hangover Part II has been a big international hit. It was the No 2 film outside the US behind Pirates of the Caribbean: On Stranger Tides last weekend, raking in 63.8 million dollars on its second weekend. Its total take as of last weekend was just over 347 million dollars.
Ang, who won a best director Oscar for the gay romance Brokeback Mountain, was in the Taiwanese capital shooting his adaptation of the award-winning Yann Martel novel Life of Pi.