The opening B/W montage from MAD MAX 2 (1981) contains a deleted shot of Max from MAD MAX (1979).

Footage of Tie-fighter pilots from STAR WARS (1977) are used in RETURN OF THE JEDI (1983).

Not sure about this one? I read somewhere that the quick insert shot of the MILLENIUM FALCON’S hidden gun blasting away the Imperial Snow troopers, was originally an outtake from STAR WARS (1977)?

The DOCTOR WHO 20th anniversary special - THE FIVE DOCTORS (1983) - used footage from the abandoned 1979 fourth Doctor serial - SHADA.