03/24/2012 06:37 pm ET Updated Mar 26, 2012

'Doctor Who' Convention: Season 7 Scoop

Attendees of Day 1 of the"Doctor Who" Convention in Cardiff, Wales had plenty to smile about.

Not only did the March 24 audience get some serious scoop on "Doctor Who's" upcoming Season 7, they also got the world premiere of the Season 7 teaser trailer. And it is completely awesome.

As previously reported, cast members Karen Gillan and Arthur Darvill are leaving the series in the fall. Their exit has has a suitably big, dramatic storyline written by showrunner Steven Moffat, which features fan favorite baddies the Weeping Angels.

Recently, the normally spoiler-averse Moffat dropped some clues via Twitter, saying: "Amy & Rory will leave in a final encounter w/ the Weeping Angels in ep 5. Not everyone gets out alive & I mean it this time."

On Sat., March 24, in a "Doctor Who Uncut" panel session, executive producer Caroline Skinner added that Amy and Rory's final episode will be shot in New York City.

Karen Gillan told HuffPost TV in an interview at the convention that the cast had their first read-through of the script on Friday night, and that Amy goes out in a majorly ass-kicking way.

"I know how I want her to go," Gillan said. "And I actually know how she goes now."

When asked if she could elaborate, Gillan laughed and said, "No, I can't! Absolutely not! But I know that I want her to go out in all her glory."

It was also revealed that the Doctor's new companion, Jenna-Louise Coleman, will make her debut in the 2012 Christmas special.

Season 7 will be split, with the final eight episodes airing in 2013. Which also marks the 50th anniversary of the veteran drama.

Former "Doctor Who" star David Tennant said in a BBC radio interview recently that he'd love to be part of the anniversary celebrations, but added, “I’m not at present! I'm waiting for a phone call." But on Day 1 of the convention, Moffat refused to say whether any of the previous residents of the TARDIS would be part of the anniversary festivities.

The "Uncut" panel session also featured the world premiere of the Season 7 teaser trailer, which received a rapturous reception from the capacity crowd. The trailer goes live on BBC's website Mon., March 26 at 4 a.m. ET. It contains footage from the Season 7 premiere, which was shot on the same sets in Almeria, Spain as the classic spaghetti western "The Good, The Bad And The Ugly." There are guest appearances from sci fi superstar Ben Browder and Adrian Scarborough (a.k.a. Pritchard the butler in the rebooted "Upstairs Downstairs").

The trailer also boasts some serious special effects and, was that a Dalek's eye poking through the snow at the end?

Check out HuffPost TV's interview with "Doctor Who" stars Matt Smith and Karen Gillan.

New to "Who?" Check out HuffPost TV's guide to the five essential episodes.