Updated

The first rule of Venice is, you don't talk about "Star Wars."

Cast members of the forthcoming "Episode VII" who are in the Italian city for the Venice Film Festival are keeping mum about details of the ultra-anticipated movie.

British actress Gwendoline Christie, who plays Brienne of Tarth in "Game of Thrones" and Commander Lyme in two "Hunger Games" movies, joked at a Vanity Fair-sponsored party that "Star Wars" producers had gone to extraordinary lengths to maintain secrecy.

"There's snipers trained on us right now," she said at an event to celebrate a collaboration between celebrity photographer Rankin and Johnnie Walker whiskey aimed at capturing rising entertainment stars.

Adam Driver, in Venice with festival entry "Hungry Hearts," was similarly terse when asked what it was like to walk onto the "Star Wars" set for the first time.

"I will say this — it's surreal," he said.