Most movie deliberate mistakes of 1981

1Chariots of Fire pictureChariots of Fire (1981)2
2For Your Eyes Only pictureFor Your Eyes Only (1981)2
3Excalibur pictureExcalibur (1981)2
4The Cannonball Run pictureThe Cannonball Run (1981)1
5The Evil Dead pictureThe Evil Dead (1981)1
6Outland pictureOutland (1981)1
7Clash of the Titans pictureClash of the Titans (1981)1
8Friday the 13th Part 2 pictureFriday the 13th Part 2 (1981)1
9Shock Treatment pictureShock Treatment (1981)1
10Eye of the Needle pictureEye of the Needle (1981)1