'Doctor Who' showrunner and stars tease 50th anniversary episode

With anticipation building to the 50th anniversary of "Doctor Who" the series' star and showrunner are doing their best to further whet fans appetites.

Matt Smith, current inhabitant of the iconic science fiction role, cited his own reaction after reading the script for the golden anniversary special: "You won’t be disappointed. I read it and I clapped at the end. I think it’s hilarious and I think it’s epic and I think it’s vast. I’m telling you nothing more. But you will not be disappointed. I think it’s going to be the biggest, the best, the most inventive, the most exciting year for the show. The script delivers on all those points that you want it to for where the show is at this time. It’s brilliant."

Series showrunner insists that viewers should not expect any leaks about what's in store for the special, with cast and crew sworn to secrecy and his own personal security measure in place. "There’s one length I’ve gone to, which I think is a really good security measure – I make sure I don’t get a script. Because I will lose it. So I forbid people to hand me one. It’s just on my computer at home under lock and key," Moffat revealed.

The series star said that such secrecy goes with the territory, especially with a series so centered on surprising its devoted audience. "It’s one of the responsibilities of being in this show. You have to discrete about what you tell people, but you have to give people enough. But the show is based on impact and delivering it on a Saturday night to people in their homes," the actor said.

Smith continued, "To be the incumbent Doctor [during the golden anniversary] is thrilling and a huge privilege. And we’re upping the scale of everything. It’s 3D... I won’t say anything about the event, but there’s more bang for your buck."

The second half of the seventh season begins on March 30th.