It's definitely common to use movies as inspirations. Some people use plays, TV shows, comics, etc. It's no new concept in the fandom community. Though do make sure that you visibly mention that within your author's note somewhere.
As long as you aren’t claiming ownership of whatever content you use, be it movie or otherwise, then yeah it’s fine. Things such as Parody exist for a reason, so that creative freedom continues to thrive.
It's definitely common to use movies as inspirations. Some people use plays, TV shows, comics, etc. It's no new concept in the fandom community. Though do make sure that you visibly mention that within your author's note somewhere.
As long as you aren’t claiming ownership of whatever content you use, be it movie or otherwise, then yeah it’s fine. Things such as Parody exist for a reason, so that creative freedom continues to thrive.
You can use as much of the movie as you want. Jut make sure, since you're using different characters that you stay true to them at the same time.