“I had to go in and do a head-scan the other day,” Kristen Stewart revealed to MTV News over the weekend, discussing a recent Vancouver appointment to create a computer-generated doppelgänger for a key “New Moon” scene.

The CGI-Bella will appear during a moment Twilighters have long dreamt of watching with their own eyes: the cliff-diving scene. In “New Moon,” Bella becomes so distraught over her breakup with Edward that she dives off a precipice into the icy waters below, hearing his voice whenever she places herself in danger. Fans care so much about the pivotal “New Moon” moment that some have even created their own videos depicting how it should go down. Until now, the biggest question has been whether Stewart would do the stunt herself.

“I went to do a head-scan the other day and it had to be my ‘determined’ look,” she laughed. “They were like, ‘You’re just about to jump, so [pretend] like you’re about to scream or something.’”

Even during the scan, however, Stewart was determined to develop her character. “I was like, ‘No, no, no. She’s set [to do it],” the actress said on Bella’s determination to make the jump.