Index: release/scripts/startup/bl_operators/screen_play_rendered_anim.py
===================================================================
--- release/scripts/startup/bl_operators/screen_play_rendered_anim.py	(revision 49998)
+++ release/scripts/startup/bl_operators/screen_play_rendered_anim.py	(working copy)
@@ -74,6 +74,7 @@
     bl_options = {'REGISTER'}
 
     def execute(self, context):
+        import sys
         import subprocess
 
         scene = context.scene
@@ -110,7 +111,11 @@
 
         file = bpy.path.abspath(file)  # expand '//'
 
-        cmd = [player_path]
+        if sys.platform == 'linux2' and preset == 'INTERNAL':
+            cmd = ["env", "LC_ALL=C", player_path]
+        else:
+            cmd = [player_path]
+
         # extra options, fps controls etc.
         if preset in {'BLENDER24', 'INTERNAL'}:
             opts = ["-a", "-f", str(rd.fps), str(rd.fps_base),