diff --git a/src/NzbDrone.Core.Test/MediaFiles/MovieImport/Aggregation/Aggregators/AggregateReleaseGroupFixture.cs b/src/NzbDrone.Core.Test/MediaFiles/MovieImport/Aggregation/Aggregators/AggregateReleaseGroupFixture.cs
index a7506e046..6ac79a438 100644
--- a/src/NzbDrone.Core.Test/MediaFiles/MovieImport/Aggregation/Aggregators/AggregateReleaseGroupFixture.cs
+++ b/src/NzbDrone.Core.Test/MediaFiles/MovieImport/Aggregation/Aggregators/AggregateReleaseGroupFixture.cs
@@ -79,5 +79,45 @@ public void should_fallback_to_file()
 
             localMovie.ReleaseGroup.Should().Be("Wizzy");
         }
+
+        [Test]
+        public void should_not_use_imdbId()
+        {
+            var fileMovieInfo = Parser.Parser.ParseMovieTitle("Lock Stock and Two Smoking Barrels (1998) [imdb-tt0120735][Bluray-1080p][8bit][x264][DTS-HD MA 5.1]-FraMeSToR", false);
+            var folderMovieInfo = Parser.Parser.ParseMovieTitle("Lock Stock and Two Smoking Barrels (1998) {imdb-tt0120735}", false);
+            var downloadClientMovieInfo = Parser.Parser.ParseMovieTitle("Movie.Title.2008.WEB-DL", false);
+            var localMovie = new LocalMovie
+            {
+                FileMovieInfo = fileMovieInfo,
+                FolderMovieInfo = folderMovieInfo,
+                DownloadClientMovieInfo = downloadClientMovieInfo,
+                Path = @"C:\Test\Unsorted Movies\Movie.Title.2008\Movie.Title.2008.mkv".AsOsAgnostic(),
+                Movie = _movie
+            };
+
+            Subject.Aggregate(localMovie, null, false);
+
+            localMovie.ReleaseGroup.Should().Be("FraMeSToR");
+        }
+
+        [Test]
+        public void should_not_use_tmdbbId()
+        {
+            var fileMovieInfo = Parser.Parser.ParseMovieTitle("Lock Stock and Two Smoking Barrels (1998) [tmdb-100][Bluray-1080p][8bit][x264][DTS-HD MA 5.1]-FraMeSToR", false);
+            var folderMovieInfo = Parser.Parser.ParseMovieTitle("Lock Stock and Two Smoking Barrels (1998) {tmdb-100}", false);
+            var downloadClientMovieInfo = Parser.Parser.ParseMovieTitle("Movie.Title.2008.WEB-DL", false);
+            var localMovie = new LocalMovie
+            {
+                FileMovieInfo = fileMovieInfo,
+                FolderMovieInfo = folderMovieInfo,
+                DownloadClientMovieInfo = downloadClientMovieInfo,
+                Path = @"C:\Test\Unsorted Movies\Movie.Title.2008\Movie.Title.2008.mkv".AsOsAgnostic(),
+                Movie = _movie
+            };
+
+            Subject.Aggregate(localMovie, null, false);
+
+            localMovie.ReleaseGroup.Should().Be("FraMeSToR");
+        }
     }
 }
diff --git a/src/NzbDrone.Core/Parser/Parser.cs b/src/NzbDrone.Core/Parser/Parser.cs
index d506e20f3..49999a72c 100644
--- a/src/NzbDrone.Core/Parser/Parser.cs
+++ b/src/NzbDrone.Core/Parser/Parser.cs
@@ -116,7 +116,7 @@ public static class Parser
         private static readonly Regex CleanQualityBracketsRegex = new Regex(@"\[[a-z0-9 ._-]+\]$",
                                                                    RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-        private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+(?<part2>-[a-z0-9]+)?(?!.+?(?:480p|720p|1080p|2160p)))(?<!(?:WEB-DL|Blu-Ray|480p|720p|1080p|2160p|DTS-HD|DTS-X|DTS-MA|DTS-ES|[ ._]\d{4}-\d{2}|-\d{2})(?:\k<part2>)?)(?:\b|[-._ ]|$)|[-._ ]\[(?<releasegroup>[a-z0-9]+)\]$",
+        private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+(?<part2>-[a-z0-9]+)?(?!.+?(?:480p|720p|1080p|2160p)))(?<!(?:WEB-DL|Blu-Ray|480p|720p|1080p|2160p|DTS-HD|DTS-X|DTS-MA|DTS-ES|[ ._]\d{4}-\d{2}|-\d{2}|tmdb(id)?-(?<tmdbid>\d+)|(?<imdbid>tt\d{7,8}))(?:\k<part2>)?)(?:\b|[-._ ]|$)|[-._ ]\[(?<releasegroup>[a-z0-9]+)\]$",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex AnimeReleaseGroupRegex = new Regex(@"^(?:\[(?<subgroup>(?!\s).+?(?<!\s))\](?:_|-|\s|\.)?)",