Stars Praise Steven Spielberg's 'Tintin' Adventure

After 28 years in the making, Steven Spielberg's The Adventures of Tintin -- finally premiered in New York last night and ET was on the red carpet to ask the stars what it was like working with the legendary director.

British actor Jamie Bell said Spielberg's involvement made it very easy to get up and go to work every day. "Getting the chance to wake up and know that you're going to work with the world's greatest director -- that's a big deal. At first it's very intimidating, but then you realize Steven is very much a family man."

Spielberg told us he worked on the film on and off for 28 years so it was gratifying to finally see it get to the big screen. The movie was produced by Lord of the Rings director Peter Jackson, who often collaborated on the filming by watching a live feed from the other side of the world.

The Adventures of Tintin -- hitting theaters December 21 -- tells the story of Tintin (Bell), a young reporter whose relentless pursuit of a good story thrusts him into a world of high adventure.

Watch the video to hear the cast members speak about dressing up in funny tight-fitting suits to facilitate the film's motion-capture animation.