 The production team used new technology called a " breakway windshield , " as well as air cannons to eject the stuntwoman , Melissa Stubbs , from the vehicle . Instead of using wires , they used pneumatic rams to push her ; cables and pulleys made it similar to a " catapult " . The stuntwoman rehearsed with a helmet on , but took it off when the scene was ready to be shot . She wore a small <unk> , a mouthguard , and some <unk> , and used her elbows to break the windshield upon being ejected . Stubbs commented that shooting the scene " all went as planned , and was very anticlimactic " because of the lack of problems . Anna Torv later called the stunt " one of the most humbling experiences in my life " . She elaborated , " I don ’ t do any of the stuff that ’ s dangerous ... Melissa Stubbs is the fantastic stuntwoman who did that [ stunt ] . They put a rocket for her in the back of the car , and they had that breakaway glass for the windshield . She has nothing on extra , except maybe elbow pads . Then they shoot her out of this rocket , through the windshield , and she rolls on the ground and lands on her mark . The guy goes in . She 's OK . Everybody claps . Then I have to go in , lay in the same position , so they can get a close @-@ up of my eyes opening . That was kind of humbling . " 
