Untitled

Changing part of view at runtime
<ContentControl DataContext="{Binding CinemaShowsOverview }" Template="{StaticResource ListView}" />

<ContentControl DataContext="{Binding CinemaShowsOverview }" Template="{StaticResource PosterView}" />

public class DataTemplateSelector : ContentControl
{
    public virtual DataTemplate SelectTemplate(object item, DependencyObject container)
    {
        throw new NotImplementedException();
    }

    protected override void OnContentChanged(object oldContent, object newContent)
    {
        base.OnContentChanged(oldContent, newContent);

        ContentTemplate = SelectTemplate(newContent, this);
    }
}

public class CinemaShowsTemplateSelector : DataTemplateSelector
{
    public DataTemplate ListTemplate
    {
        get;
        set;
    }

    public DataTemplate PosterTemplate
    {
        get;
        set;
    }

    public DataTemplate DefaultTemplate
    {
        get;
        set;
    }

    public override DataTemplate SelectTemplate(object item, DependencyObject container)
    {
        if (item == null)
            return DefaultTemplate;

        var viewModel = item as CinemaShowsOverview;
        if (viewModel != null)
            return viewModel.IsPoster ? PowerTemplate : ListTemplate;
        else
            return DefaultTemplate;
    }
}

<assets:CinemaShowsTemplateSelector PosterTemplate="{StaticResource PosterView}"
                                    ListTemplate="{StaticResource ListView}"
                                    Content="{Binding CinemaShowsOverview}">