Jennifer Morrison by Lester Cohen/WireImage.com
's Jennifer Morrison has been tapped to star in
The Murder of Princess Diana
, a Lifetime movie based on the Noel Botham book that theorized that Di's fatal car crash was the dirty work of a conspiracy. Morrison will play an American journalist who witnesses the tunnel crash and starts her own investigation after becoming suspicious of the "official" take on what happened. (It should be noted that a recent BBC poll found that 31 percent of British citizens believe Di's death was
An August premiere is slated, timed to the 10th anniversary of Diana's passing.