"The only time I get a little weirded out is when I go to the back to use the restroom or something and I see the fuselage flex," Greenwood added. "That doesn't do my stomach any good."
Look for Greenwood to be all calm, cool and collected again when he takes flight with the crew of the Starship Enterprise and director J.J. Abrams again with "Star Trek: Into the Darkness," which has been pegged for a May 17 release.
"The new movie, I gather, is already cut together and by all accounts is working pretty well," Greenwood said. "I don't know when I'll get a chance to see it, but I'm really looking forward to it."