Aliens are scary again as “Fringe” star Joshua Jackson (Shutter) will topline UFO, the feature film version of the British TV series that will be directed by visual effects wiz Matthew Gratzner. Jackson will star as Paul Foster, a test pilot who joins S.H.A.D.O. (Supreme Headquarters Alien Defense Organization), a covert org built under a Hollywood studio that defends Earth against a race of aliens who have been abducting humans and using the body parts. The series was a cult hit in the ’70s. Graztner, the visual effects supervisor on films ranging from the Martin Scorsese-directed “Shutter Island” to “Iron Man,” was set last summer to make his feature directing debut on a film that its producers said is aiming for a spring start in the U.K.