Who should play Princess Di in upcoming biopics?

Years ago, Lindsay Lohan told In Touch Weekly she'd like to play the royal icon. That's unlikely to happen now. But according to the U.K.'s Daily Mail, Scarlett Johansson is a "possibility," along with "top" contender Keira Knightley, for an upcoming film that would take us through Diana's entire life from her childhood to her 1997 death.

The French producer of Knightley's 2008 film 'The Duchess' (which was marketed as having parallels to Diana's life) also made 2006's 'The Queen.' That film's star, Helen Mirren, is reportedly being sought to join the still-evolving cast as Diana's mother, Frances Shand Kydd.

Meanwhile, the paper reports another, bigger Diana biopic in the works. This one will zero in on the stylish Brit's relationship with bodyguard Ken Wharfe, and would be based on his 2002 tell-all, 'Diana: Closely Guarded Secret.' Charlize Theron has reportedly been cast as Diana opposite Ewan McGregor as Wharfe. Unlike the rumored Knightley project, which is in "early stages," the Theron-and-McGregor movie already has a script, and a nearly-$50-million budget.