Amber Heard on being told that coming out as bisexual would 'without a doubt' end her career

Amber Heard talked about her sexuality at a summit. (Reuters)

Amber Heard has revealed how she was told that coming out as bisexual would "without a doubt" end her career.

The 30-year-old actress has always been open about her sexuality, saying she never came out because "I was never in." However, she admitted that having the public come to terms with her choices was hard in the early days of her career.

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"It did impact my career, it was difficult," People reports Heard telling The Economist's Pride & Prejudice Summit in New York City on Thursday. "It was not easy. I was the only one working in this way, so it was definitely difficult because no one had done it. I did that even though everyone told me it would end my career, without a doubt."

Heard added that her response to directors who doubted whether a bisexual actress could credibly play a straight woman was to prove them wrong.

"I rolled my eyes at that," said the "Aquaman" actress. "And I said, 'Watch me do it.' And, I did it."

Heard caused a media frenzy during her messy divorce from Hollywood star Johnny Depp last year, but in the early days of her career it was her romance with Tasya van Ree which proved an eye-opening experience.

While Heard would frequently take Ree to events and was open when asked who was her date for the evening, she says "no one ever asked" much about her love life. However, after the pair split following four years of dating and Heard told a reporter it "definitely was a big deal," she says public perception of her changed.

"Then I saw I was attached to a label," she said. "I never saw myself defined as one particular thing or not. So, I watched as I quickly became not actress Amber Heard, but out lesbian Amber Heard."

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Defying those who told her she couldn't be open about her sexuality while succeeding in Hollywood, Heard has gone on to star in films including "Pineapple Express," "The Rum Diary," and "Magic Mike XXL."