Corrected entry: General problem with the camera technique. They did not "sync" the movie camera with the television and computer screens in the movie. When the camera is out of sync with screens that are being filmed, it causes a distortion band across the picture tube. Two of the scenes where this is extremely evident (and a bit annoying) are when Roger and Johnny are watching the Stillson commercial and when Chris is on the computer (very visible green flickering band across the computer screen). Modern digital video cameras use a program called synchroscan to synchronize the camera to the TV screen being filmed.
The Dead Zone (1983)
1 corrected entry
Directed by: David Cronenberg
Starring: Christopher Walken, Martin Sheen, Herbert Lom, Tom Skerritt, Brooke Adams
Revealing mistake: The outline of the blood pack is visible under John's shirt when Stillson's body guard shoots him. (01:37:35)
Johnny Smith: "Bless me"? Do you know what God did for me? He threw an 18-wheeled truck at me and bounced me into nowhere for five years! When I woke up, my girl was gone, my job was gone, my legs are just about useless... Blessed me? God's been a real sport to me.
Trivia: During Johnny's visions, his involuntary jerks were achieved by David Cronenberg firing a .357 Magnum revolver loaded with blanks from behind the camera.
Correction: Limitations in the technology at the time of filming are not mistakes.
JC Fernandez