iPhone Creating a Modal Movie Window

I have created an app that incorporates a table view, detail view, and a web view. I have established a cell in the table view that takes a URL from an RSS feed and will display it in a webview. The URL is an .MP4 file which causes the video to play. The problem I am having is that when the video ends, I cannot go back to the previous screen. The code is below:

DetailViewController.m load webview

if (indexPath.section == SectionHeader && indexPath.row == SectionHeaderEnclosure) {  
    if (item.enclosures) {开发者_开发技巧  
        for (NSDictionary *dict in item.enclosures){  
            NSString *url = [dict objectForKey:@"url"];  
            NSLog(@" url is : %@",url);  

            //EXPERIMENTAL              
            WebViewController *webVC = [[WebViewController alloc] initWithURL:url];
            [self presentModalViewController:webVC animated:YES];

        }  
    }  
} 

WebViewController.m

- (void)loadView 
{
    UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
    self.view = webView;
    [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:_url]]];

}

//Dismiss modal view
- (IBAction) done:(id)sender {
NSLog(@"done:");
[self dismissModalViewControllerAnimated:YES];
}

I think it would be better to use an MPMoviePlayerViewController. The documentation shows how to set it up with the URL directly using initWithContentURL: and present it modally. You can listen for notifications thet the movie has ended and dismiss it when done. Lots of good stuff in the documentation.