How to correct name of upload's image in database?

Have a problem with saving name of poster in database. I want to save files with their own names, not with default. That's why done next construction in my FilmController:

			if ($request->hasFile('poster')) {
                $poster = $request->file('poster');
                $name = $poster->getClientOriginalName();
                $poster->storeAs('poster', $name);
            }

But in this case name of poster looks like "C:\xampp\tmp\phpBF23.tmp" in database. How to fix it and do, that file will save with it's original name. For example 4563s.jpg

For full description, the code in controller looks so:

/**
     * Store a newly created resource in storage.
     *
     * @param  StoreFilmRequest  $request
     * @return RedirectResponse
     */
    public function store(StoreFilmRequest $request): RedirectResponse
    {
       try {
            $film = new Film($request->validated());
            if ($request->hasFile('poster')) {
                $poster = $request->file('poster');
                $name = $poster->getClientOriginalName();
                $poster->storeAs('poster', $name);
            }

            $tags = $film['tags'];
            unset($film['tags']);

            $film->save();
            $film->tags()->sync($tags);
        } catch (\Exception $exception) {
            abort(404);
        }

        return redirect(route('admin.films'));
    }