Wow, that is barely a shirt.
"Battlestar Galactica" stunner Tricia Helfer hit the red carpet at the "Riddick" premiere on Wednesday to support her former costar Katee Sackhoff -- and showed up wearing one of the most low-cut tops we've ever seen ... ever.
And while she may get most of the attention today, she wasn't the only celeb at the Westwood premiere.
Vin Diesel showed up with his baby mama Paloma Jimenez, who was also quite the gorgeous distraction in a low-cut dress with a sexy leg slit. Paloma is the mother to Vin's two kids, Vincent and
Check out the gallery above to see who else showed up for the premiere. "Riddick" opens in theaters September 6.
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