stack_poster.dart

// poster
    return Stack(
      children: [
        Padding(
          padding: EdgeInsets.only(bottom: 140.0),
          child: ArcBannerImage(imageBanner),
        ),
        Positioned(
          bottom: 0.0,
          left: 16.0,
          right: 16.0,
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.end,
            mainAxisAlignment: MainAxisAlignment.end,
            children: [
              Poster(
                imagePoster,
                height: 180.0,
              ),
              SizedBox(width: 16.0),
              Expanded(child: movieInformation),
            ],
          ),
        ),
      ],
    );