It's a sad morning for die-hard Robert Pattinson fans!

According to MTV, the "Twilight" actor has officially dropped out of "Parts Per Billion," a project he joined last December.

Apparently, Pattinson had to ditch the film because he's too busy prepping for "New Moon," the sequel to last year's big-screen vampire romance.

Starring Rosario Dawson, Olivia Thirlby and Dennis Hopper, "Billion" follows three couples who risk being torn apart after struggling with the same event. The film is described as an ensemble story with different storylines.

Pattinson quickly rose to fame after he got the role as Edward Cullen in the adaptation of Stephenie Meyer's popular book. Now his fans will have to wait a little longer until they get to see him in something other than a "Twilight" sequel.