The phrase "before its release" is grammatically correct and can be used in written English.
Example: The movie was highly anticipated before its release, but ended up receiving mixed reviews from critics.
Long before its release, it became a laughing stock and the worst example of Hollywood extravagance.
Even before its release, Mr. Olmert made it clear that he had no intention of resigning.
Once he had completed the album, it was leaked months before its release date.
Before its release, The Guardian described it as "attention-grabbing" and "pretty edgy".
DealBook spoke to Mr. Markopolos before its release.
He died in 1989, aged 34, shortly before its release.
Before its release, "Haunted Castle" generated some mild controversy.
A copy was sent to President Reagan before its release.
The hospitals were not given the data before its release by Medicare officials.
Adele's upcoming album 25 has reportedly leaked online just three days before its release.
There are also already lines outside cinemas for the Force Awakens, 12 days before its release.
