Sigourney Weaver has seen Gravity — but not in 3-D. “I was afraid to see it in 3-D,†she told us earlier this week at the 2013 Golden Heart Awards. “I don’t think I could do it — I already felt like I was floating away.†She saw the movie with her daughter, she told us, and she held onto her “for dear life.†So it’s possible to scare Sigourney Weaver; you learn something new every day.