GStreamer can't play: 
ftp://ftp.mplayerhq.hu/MPlayer/samples/MOV/1024x1024/t3_tlr_m480.mov

MPlayer can, however using win32 dlls for the QDMC/audio part.

MPlayer output:
Playing t3_tlr_m480.mov.
QuickTime/MOV file format detected.
--------------
MOV track #0: 423 chunks, 2586 samples
MOV: Found unknown movie atom SMI  (21)!
Image size: 480 x 260 (24 bpp)
Display size: 480 x 260
Fourcc: SVQ3  Codec: 'Sorenson Video 3'
--------------
MOV track #1: 216 chunks, 0 samples
Audio bits: 16  chans: 2  rate: 44100
Audio extra header: len=92  fcc=0x77617665
MOV: Found unknown audio atom Fourcc: QDM2
--------------
MOV: longest streams: A: #1 (216 samples)  V: #0 (2586 samples)
Clip info:
 name: Terminator 3-  Rise Of The Machines.
 copyright: �2002, 2003 Warner Brothers Pictures
 comments: QuickTime 5 version encoded and delivered by www.apple.com/trailers/
==========================================================================
Opening audio decoder: [qtaudio] QuickTime Audio Decoder
External func COMCTL32.dll:17
External func COMCTL32.dll:16
QuickTime6 DLLs found
QuickTime.qts patched!!! old entry=0x6693b330
theQuickTimeDispatcher catched -> 0x6693b330
WARNING! Invalid Ptr handle!
 
### Searching for QuickTime plugins (*.qtx) at /usr/local/lib/win32...
### FindNext: QuickTimeEssentials.qtx
### FindNext: QuickTimeInternetExtras.qtx
theQuickTimeDispatcher catched -> 0x6693b330
theQuickTimeDispatcher catched -> 0x6693b330
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 13997->176400 (112.0 kbit)
Selected audio codec: [qdmc] afm:qtaudio (Quicktime QDMC/QDM2 audio decoders)
==========================================================================
vo: X11 running at 1400x1050 with depth 16 and 16 bpp (":0.0" => local display)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffsvq3] vfm:ffmpeg (FFmpeg Sorenson Video v3 (SVQ3))


totem output:
00000000 (0x8af74ed): 00 00 00 5c 77 61 76 65 00 00 00 0c 66 72 6d 61 
...\wave....frma
00000010 (0x8af74fd): 51 44 4d 32 00 00 00 24 51 44 43 41 00 00 00 01 
QDM2...$QDCA....
00000020 (0x8af750d): 00 00 00 02 00 00 ac 44 00 01 b5 80 00 00 10 00 
.......D........
00000030 (0x8af751d): 00 00 01 00 00 00 05 14 00 00 00 1c 51 44 43 50 
............QDCP
00000040 (0x8af752d): 3f 80 00 00 00 00 00 00 3f 80 00 00 3f 80 00 00 
?.......?...?...
00000050 (0x8af753d): 00 00 00 1b 00 00 00 08 00 00 00 00 00 00 00 18 
................
00000060 (0x8af754d): 73 74 74 73                                      stts