The most common and most likely answer to this crossword clue is the 4 plus 4 letter word STAR WARS
I've seen this crossword clue in Financial Times
S
T
A
R
W
A
R
S
More clues leading to the result STAR WARS
- Film celebrity was right inside
- Film headliner's clothing turned green
- Film luminary was going about first of remakes
- 6 of leading actors in film franchise?
- Celebrity promoted second unaltered picture from 1970s
- Big names describing realistic revolutionary film
- Film campaign to get into headlines
- Beatle was a little mixed-up in popular 70s film
- Film‘s leads hiding – icy, stuck up
- Inexperienced traitors shot up by southern defence system
Buddy explains!
The straight part
We know that "picture from 1970s" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case picture from 1970s = star wars.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.