Insert a Form value from a select in a dynamic url - laravel

Question

While using laravel to create a movie catalog, I am trying to extract the value from an HTML Form and insert it in the URL.
The objective is that, from the main page which is:
http://127.0.0.1:8000/index/
I want it to extract an ID value from the form and insert it in the url:
http://127.0.0.1:8000/index/1
http://127.0.0.1:8000/index/2
http://127.0.0.1:8000/index/3
As each one is a dynamic view that will display each movie information from the database.
The form is already recognizing the ids and is displaying them in the select form in page, but I am not able to have that value used to insert it in the url as shown above.
Please help me, here is my code:
index.blade.php
<form action=" WHAT TO PLACE HERE??? " method="POST">
#csrf
<select name="selector">
<option value="" disabled selected> --- ID --- </option>
#foreach($movies as $movie)
<option value="{{ $movie->id }}">{{ $movie->id }}</option>
#endforeach
</select>
<button>Buscar</button>
</form>
web.php
Route::get('/index', 'App\Http\Controllers\MovieController#index');
Route::get('/index/create','App\Http\Controllers\MovieController#create');
Route::post('/index','App\Http\Controllers\MovieController#store');
Route::get('/index/{id}','App\Http\Controllers\MovieController#show');
Route::delete('/index/{id}','App\Http\Controllers\MovieController#destroy');
MovieController.php
class MovieController extends Controller
{
public function index() {
$movies = Movie::all();
return view('movies.index', ['movies' => $movies,]);
}
public function show($id) {
$movie = Movie::findOrFail($id);
return view('movies.show', ['movie' => $movie]);
}
public function create() {
return view('movies.create');
}
public function store(){
$movie = new Movie();
$movie->title = request('title');
$movie->synopsis = request('synopsis');
$movie->year = request('year');
$movie->cover = request('cover');
$movie->save();
return redirect('/')->with('mssg','La película a sido registrada');
}
public function destroy($id) {
$movie = Movie::findOrFail($id);
$movie->delete();
return redirect('/index/');
}
}

Answer 1

Replace you form as:
index.blade.php
<form action="" method="POST" id="form_id">
#csrf
<select name="selector" id="selector">
<option value="" disabled selected> --- ID --- </option>
#foreach($movies as $movie)
<option value="{{ $movie->id }}">{{ $movie->id }}</option>
#endforeach
</select>
<button type="submit">Buscar</button>
</form>
Add script after this :
<script>
$('#selector').change(function(){
var selected_value = $(this).val();
$('#form_id').attr('action', 'http://127.0.0.1:8000/'+selected_value);
});
</script>
This will set your action dynamic as per selection with your select tag