MovieController

public function addAction(Request $request)
    {
        $form = $this->createForm(MoviePersonForm::class);

        $form->handleRequest($request);

        if($form->isSubmitted() && $form->isValid())
        {
            $movie = new Movie();
            $movie['name'] = $form['movie_name']->getData();
            $movie['year'] = $form['movie_year']->getData();
            $movie['description'] = $form['movie_description']->getData();

            $em = $this->getDoctrine()->getManager();
            $em->persist($movie);
            $em->flush();

            $this->addFlash('success', 'Movie created');

            return $this->redirectToRoute('cms_list_movie');
        }

        return $this->render('cms/movie/crew.html.twig',[
            'MoviePersonForm' => $form->createView()
        ]);
    }