Starz and its sister network, Encore, are among the many networks broadcasting the special beginning at 7 p.m. CT Friday.
"We must stand united against this awful, devastating disease, a lesson the cast and crew of 'Spartacus' learned when we lost a dearly loved friend far too early in his life," Lawless says in the PSA. "Andy Whitfield was a true champion. An amazing man, Andy gave his all to every aspect of his life and it was an honor to know him."
She goes on to talk about the documentary: "As the title implies, Andy's uplifting story is about how important it is to live in the present and not fear the unknown. It's a beautiful life lesson for everyone to aspire to."
Learn more about "Be Here Now" at beherenowfilm.com.
Stand Up To Cancer is a program of the Entertainment Industry Foundation, a charity that raises funds to hasten the pace of groundbreaking translational research that can get new therapies to patients quickly and save lives. For more information, please go to standup2cancer.org.
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