diff --git a/lib/private/Preview/Movie.php b/lib/private/Preview/Movie.php
index 7b9c7a26f77b1..41dbefd3fb7fd 100644
--- a/lib/private/Preview/Movie.php
+++ b/lib/private/Preview/Movie.php
@@ -84,13 +84,35 @@ public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage {
 				if ($result === null) {
 					$result = $this->generateThumbNail($maxX, $maxY, $absPath, 0);
 				}
+				Server::get(LoggerInterface::class)->debug(
+					'Movie preview generation attempt failed'
+						. ', file=' . $file->getPath()
+						. ', time=' . $timeStamp
+						. ', size=' . ($size ?? 'entire file'),
+					['app' => 'core']
+				);
 			}
 
 			$this->cleanTmpFiles();
 
 			if ($result !== null) {
+				Server::get(LoggerInterface::class)->debug(
+					'Movie preview generation attempt success'
+						. ', file=' . $file->getPath()
+						. ', time=' . $timeStamp
+						. ', size=' . ($size ?? 'entire file'),
+					['app' => 'core']
+				);
 				break;
 			}
+
+		}
+		if ($result === null) {
+			Server::get(LoggerInterface::class)->error(
+				'Movie preview generation process failed'
+					. ', file=' . $file->getPath(),
+				['app' => 'core']
+			);
 		}
 
 		return $result;
@@ -167,21 +189,23 @@ private function generateThumbNail(int $maxX, int $maxY, string $absPath, int $s
 			$output = $stdout . $stderr;
 		}
 
+		Server::get(LoggerInterface::class)->debug(
+			'Movie preview generation output'
+				. ', file=' . $absPath
+				. ', output=',
+			['app' => 'core', 'output' => $output]
+		);
+
 		if ($returnCode === 0) {
 			$image = new \OCP\Image();
 			$image->loadFromFile($tmpPath);
 			if ($image->valid()) {
 				unlink($tmpPath);
 				$image->scaleDownToFit($maxX, $maxY);
-
 				return $image;
 			}
 		}
 
-		if ($second === 0) {
-			$logger = Server::get(LoggerInterface::class);
-			$logger->info('Movie preview generation failed Output: {output}', ['app' => 'core', 'output' => $output]);
-		}
 
 		unlink($tmpPath);
 		return null;