         }
     }
 
-    public var fillMode: String! {
+    public var fillMode: String {
         get {
             return self.playerView.fillMode
         }

        }
    }

    public var naturalSize: CGSize! {
        get {
            if let playerItem = self.playerItem {
                let track = playerItem.asset.tracksWithMediaType(AVMediaTypeVideo)[0]

        }
    }
    
    public var currentTime: NSTimeInterval {
        get {
            if let playerItem = self.playerItem {
                return CMTimeGetSeconds(playerItem.currentTime())
