diff -uNr duplicity-bzr/duplicity/commandline.py duplicity-bzr-patched/duplicity/commandline.py
--- duplicity-bzr/duplicity/commandline.py	2011-08-10 17:24:47.000000000 +0200
+++ duplicity-bzr-patched/duplicity/commandline.py	2011-08-10 17:25:43.000000000 +0200
@@ -378,6 +378,9 @@
     # --num-retries <number>
     parser.add_option("--num-retries", type="int", metavar=_("number"))
 
+    # File owner uid keeps number from tar file. Like same option in GNU tar.
+    parser.add_option("--numeric-owner", action="store_true")
+
     # Whether the old filename format is in effect.
     parser.add_option("--old-filenames", action="callback",
                       dest="old_filenames",
diff -uNr duplicity-bzr/duplicity/globals.py duplicity-bzr-patched/duplicity/globals.py
--- duplicity-bzr/duplicity/globals.py	2011-08-10 17:24:47.000000000 +0200
+++ duplicity-bzr-patched/duplicity/globals.py	2011-08-10 17:25:43.000000000 +0200
@@ -156,6 +156,9 @@
 # support european for now).
 s3_european_buckets = False
 
+# File owner uid keeps number from tar file. Like same option in GNU tar.
+numeric_owner = False
+
 # Whether to use plain HTTP (without SSL) to send data to S3
 # See <https://bugs.launchpad.net/duplicity/+bug/433970>.
 s3_unencrypted_connection = False
diff -uNr duplicity-bzr/duplicity/path.py duplicity-bzr-patched/duplicity/path.py
--- duplicity-bzr/duplicity/path.py	2011-08-10 17:24:47.000000000 +0200
+++ duplicity-bzr-patched/duplicity/path.py	2011-08-10 17:25:43.000000000 +0200
@@ -200,10 +200,14 @@
 
         # Set user and group id
         try:
+            if globals.numeric_owner:
+                raise KeyError
             self.stat.st_uid = tarfile.uname2uid(tarinfo.uname)
         except KeyError:
             self.stat.st_uid = tarinfo.uid
         try:
+            if globals.numeric_owner:
+                raise KeyError
             self.stat.st_gid = tarfile.gname2gid(tarinfo.gname)
         except KeyError:
             self.stat.st_gid = tarinfo.gid