While the "kawoosh" effect in the movie was created by filming the actual swirl of water in a glass tube, and looked like a vortex on the back of the Gate, on the TV series, this effect was completely created in CG by the Canadian visual effects company Rainmaker"." At the beginning of Season 9, the original movie wormhole sequence was substituted by a new sequence similar to the one already used on "Stargate Atlantis", but being blue as it was in the movie and "SG-1", whereas in "Atlantis" it is green. "Stargate Universe" uses a lighter shade of blue.