John Cho found it downright surreal to return as Harold Lee in New Line’s “A Very Harold & Kumar 3D Christmas,” which preemed Nov. 2 at the Chinese.

“First off, we shot it in Detroit during the hottest summer ever,” Cho recalled during the yuletide-themed afterparty at the Supper Club. “If you’d asked me seven years ago whether we’d be getting a third film out of these characters, I would have said no.”

Cho’s ready for a fourth go-around, noting, “It will work getting them to age, maybe as 50-year-olds.”

Neil Patrick Harris is good to go too, adding, “I love doing these — it’s five days work and then a great party nine months later. I think there should be a ‘Harold & Kumar’ marathon on TBS.”

First-time helmer Todd Strauss-Schulson admits that he’s still a bit stunned to be directing a Christmas movie. “I’m a Jew, so what do I know from Christmas?” he mused. “I’ve always loved the old Christmas movies like ‘Miracle on 34th Street’ and ‘Home Alone.’? “