Shortly after her release, Manning posted a photo of her Converse-clad feet with the caption, "First steps of freedom!:D".
On social media Wednesday, people either hailed her as a courageous hero or denounced her as a traitor.
The Department of Defense repeatedly has declined to discuss Manning's treatment.
Manning's clemency application to Obama maintained his belief that he was unfairly sentenced to such a long period in prison, saying, "I have never made any excuses for what I did".
After release, pending a final appellate review of the Manning's court martial charges, Manning will remain an active duty private in the U.S. Army with access to commissaries, on-base recreation and health-care services.
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She acknowledged leaking the files while working in Iraq, but protested that she had acted to raise awareness of the impact of U.S. military action on innocent civilians. She also took part in Interview's "New Progressives" issue in April, which featured activists leading the charge on issues ranging from gender and racial equality, lesbian, gay, bisexual and transgender issues, environmental protections, political transparency and gun control, among other things.
Chelsea Manning was a meek, geeky army private who stunned the world in 2010 by leaking a massive trove of secret USA diplomatic records, hoping to spark debate over the country's role in wars. Manning, whose sentence was commuted by former president Barack Obama, said in a statement via her legal team. The decision marked a surprising turnaround for the president, who brought more leak prosecutions than the previous administrations combined.
WikiLeaks began revealing secrets in 2007 and then burst onto the wider public consciousness three years later with a series of releases, including material gathered by Manning during her stint as an intelligence analyst in Baghdad.
"Presenting myself in the gender that I am is about my right to exist", she said.
Mary Burke, senior production and development executive at the BFI, added: "Tim Travers-Hawkins is a visionary British artist and film-maker, whose power to find the very heart of a human story amidst faceless towers of control makes us very proud to back his debut feature documentary to ensure Chelsea's story rings out loudly across the world". "And other people have gone to prison for a lot less than that and stayed in".
The possibility that Manning could become a prominent face in the lesbian, gay, bisexual and transgender rights movement has sparked concern among some, however.
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While slayings of journalists draw attention, they are not an aberration in a country with steadily deteriorating security. In Mexico City , journalists marched with signs and chanted the phrases, "They are killing us" and "No to silence".
Chelsea Manning was released from prison Wednesday. "There are far better representatives of the LGBT community".
Hawkins was planning to film Manning as she was released from prison Wednesday.
A scan through Wikileaks' Twitter feed shows support for Manning, but no word from Assange about turning himself over to authorities.
Manning went on a hunger strike during her detention to denounce the disciplinary measures to which she was subjected - including stints in solitary confinement.
In 2014, a federal judge granted her request to formally change her name to Chelsea Elizabeth Manning.
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The rival claims to east Jerusalem lie at the heart of the Israeli-Palestinian conflict and often boil over into violence. Bennett said he welcomed Trump's arrival next week, but said Israel also has to stick to its positions.