X-Files Trailer @ Iron Man (May 2)

From SciFi.com:

X-Files Trailer Previewed

Chris Carter, who co-wrote and directed the upcoming X-Files sequel film, offered fans a glimpse at a rough cut of the trailer for the movie, which featured the new tagline "Believe Again."

Screened at the William S. Paley Television festival in Hollywood on March 26, the trailer featured a bit of dialogue between Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson):

Mulder: "Scully. I need you on this with me."

Scully: "I know. That's what scares me."

It featured quick cuts of footage of uniformed men searching a snowfield, led by a white-haired man played by Billy Connolly; someone dragging a body; Mulder in a car being hit by another vehicle; a glimpse of cast member Callum Keith Rennie; Scully hitting someone over the head with a blunt object; the discovery of a body buried in ice; and other images, some of which were also previewed at WonderCon in San Francisco last month.

The trailer ends with a voice-over bit of dialogue between Connolly's character and Mulder as viewers see an image of Mulder and Scully climbing out of a helicopter:

Connolly's voice: "Do you believe in these kind of things?"

Mulder's voice: "Let's just say I want to believe."

The finished trailer will debut in movie theaters along with Iron Man on May 2, a Fox spokesman told SCI FI Wire. The second, as-yet-untitled X-Files movie opens July 25. --Patrick Lee, News Editor

Hulk Trailer

From SciFi.com:

The first teaser trailer for The Incredible Hulk will make its exclusive broadcast debut in a simultaneous block on seven networks on March 12, Marvel announced.

The trailer will air at approximately 9:56 p.m. ET/6:56 p.m. PT on MTV, MTVU, MTV2, VH1, Spike TV, Nick at Nite and CMT.

Following the on-air premiere, the trailer will be immediately posted on MTV.com for an exclusive period.

The trailer will begin showing in theaters across the country on March 14, attached to prints of Rogue Pictures' Doomsday.

The Incredible Hulk, starring Edward Norton, hits theaters worldwide on June 13.