The Entity: According to Variety, Mark Wahlberg will portray In Cold Blood killer Perry Smith and Sandra Bullock is in negotiations to play "To Kill a Mockingbird" author Harper Lee in the Truman Capote biopic "Every Word Is True." The film is written and will be directed by Doug McGrath for Warner Independent Pictures and Killer Films.

U.K. stage actor Toby Jones, best known Stateside as the voice of the gnomish Dobby the House Elf in "Harry Potter and the Chamber of Secrets," will star as Capote.

McGrath adapted his script from George Plimpton's 1997 oral biography "Truman Capote: In Which Various Friends, Enemies, Acquaintances and Detractors Recall His Turbulent Career."

The pic will focus on the relationship that developed between Capote and convicted murderers Dick Hickock and, in particular, Smith while the pair awaited execution on death row.