ios - Storing and retrieving temporary mp4 files

Question

I am capturing a five seconds long mp4 file. I would for the User to be able to play and review the video before uploading it to Parse. I don't want to save the video to the local photo library, I just want to replay. Should I be saving the file to the temporary directory like so:

    NSString *outputPath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"output.mov"];
    NSURL *outputURL = [[NSURL alloc] initFileURLWithPath:outputPath];
    NSFileManager *fileManager = [NSFileManager defaultManager];
    if ([fileManager fileExistsAtPath:outputPath])
    {
        NSError *error;
        if ([fileManager removeItemAtPath:outputPath error:&error] == NO){
            NSLog(@"File removed from outputPath");
        };
    }

    [MovieFileOutput startRecordingToOutputFileURL:[NSURL fileURLWithPath:outputPath]
                                  recordingDelegate:self];

Can I play the video using this method?

- (IBAction)playVideo:(id)sender {
NSString *filePath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"Output.mp4"];
NSURL *fileURL = [NSURL URLWithString:filePath];
self.avPlayer = [AVPlayer playerWithURL:fileURL];

AVPlayerLayer *movieLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer];
self.avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;

[_avPlayer play];

}