private void initMoviesGrid() {
   adapter = new MoviesAdapter(getContext(), null);
   adapter.setOnItemClickListener(this);
   recyclerView.setAdapter(adapter);
   recyclerView.setItemAnimator(new DefaultItemAnimator());
   int columns = getResources().getInteger(R.integer.movies_columns);
   recyclerView.addItemDecoration(
       new ItemOffsetDecoration(getActivity(), R.dimen.movie_item_offset));
   gridLayoutManager = new GridLayoutManager(getActivity(), columns);
   recyclerView.setLayoutManager(gridLayoutManager);
   onMoviesGridInitialisationFinished();
 }