Did You Catch Jennifer Aniston's Bizarre Reaction to Seeing Kate Beckinsale at the Critics' Choice Awards?

As Kate Beckinsale prepared to present at the Critics' Choice Awards, the audience camera caught Jennifer Aniston's very strange reaction to seeing the Underworld actress walk across the stage. Jennifer noticeably gasps when she sees Kate, appears to say "watch out," and, after calming down, mumbles "okay" to herself. So weird! Was she worried Kate was about to pull a Jennifer Lawrence and trip on her gorgeous, floor-length silver gown?! Whatever the reason may be, Jen's face is a must see. Check it out above, and see her other hilarious candid moment from Sunday night.