Jeremy Renner on His Infamous Viagra Mix-Up

Last night's highly anticipated The Bourne Legacy premiere in New York City brought together A-listers Jeremy Renner, Rachel Weisz and Edward Norton, where the three talked about the pressure they felt following up Matt Damon's successful and well-received Jason Bourne films.

"The pressure is over -- I feel like we put in all the work, post [production] put in all their work, and I'm just excited to see how it came together," a very relaxed Renner told ET. "There's a standard that was shown, and tone and pace and authenticity, and those sort of things ... and truth is the barometer for all this stuff, the intelligence of the piece and the ferocity of the action -- if it's not truthful then it doesn't matter --that's the pressure."

Video: Behind 'The Bourne Legacy'

Renner shared that aside from a few motorcycle stunts, he completed all of the action sequences himself, which he described as "great fun."

"I'd be a jerk to not even try at least -- so I gave it a go," he grinned.

Renner also dished about his recent headline-making Jimmy Kimmel Live! appearance, where he confessed that he accidentally took Viagra instead of Ambien during an 11-hour flight.

"I'm gonna stick to melatonin I think, see how that goes," he joked. "So there's no mix-ups."

Video: 'Bourne Legacy' Stars Mourn Colorado Victims

Check out the video to hear how Weisz was able to keep her husband Daniel Craig's much buzzed-about Olympic Opening Ceremony appearance as James Bond a secret, and Norton on what it was like working with Renner and Weisz.

The Bourne Legacy hits theaters August 10.