Johnny Depp's girlfriend Amber Heard opted to fly solo on the red carpet of her latest film "Paranoia." She was joined by her co-stars, Miley Cyrus' fiancé Liam Hemsworth along with Harrison Ford and their director Robert Luketic.

Heard wore a black and blue gown to the Los Angeles premiere of the film on Thursday night. According to the Daily Mail, all eyes were on the 27-year old star as she showed off her hot body in a Vionnet dress, which she paired with Jimmy Choo shoes and David Yurman jewelry.

The actress looked stunning as she posed alongside the "Paranoia" cast, "The Hunger Games" actor Liam Hemsworth and "Star Wars" legend Harrison Ford.

While on the red carpet the actress spilled the details about the mischievous prank she played on her co-star and on-screen love interest Hemsworth.

[For photos from the "Paranoia" red carpet click HERE]

"It's not a little prank. It was a big prank," Heard told E! News with a wink.

The actress explained to the celebrity news site how she managed to get everyone on set in on the prank, "Well, I saw a discarded large dildo in the prop truck and I asked if I could borrow it, and after not so long of a pause the prop guy happily handed it over to me."

The blonde bombshell added, "I talked to Robert and the producers and made sure that once we got the take and were good, that we could ask for one extra. And unbeknownst to Liam, I just switched out my arm for the dildo."

Following his discovery of the sex toy Heard said, "He loved it."

However, Hemsworth recalled the prank much differently, he described the embarrassing moment to E! He said, "I get into the bed and they say."

"Then I turn over and I grab what I thought was her arm, and it was a giant dildo."

"It was about that big, a black one," he said, holding his hands nearly two feet apart.

"And I pulled it out, and everyone was in on it...except me, yeah."

Liam Hemsworth's and Amber Heard's film "Paranoia" is set to hit theaters August 16th.