The most common and most likely answer to this crossword clue is the 10 letter word PRERELEASE
P
R
E
R
E
L
E
A
S
E
Buddy explains!
The straight part
We know that "early copy of film" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case early copy of film = prerelease.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.
What does PRERELEASE mean?
PRERELEASE noun- A preliminary version of a work, released in advance.
- An inadvertent (premature) release of a skiboot from the bindings of a ski, caused by excessive vibration, such as going over an extremely bumpy piste.
- To release in advance
- Before release.