[pimplici@web1 ~]$ ffmpeg -i hot.flv -an -vf  "scale=-1:720,movie=/srv/www/vhosts/pimplicious.com/htdocs/data/watermark.png [watermark]; [in][watermark] overlay=10:10 [out]" -y -f mp4 scaled.mp4
ffmpeg version N-37177-g3c5fe5b-syslint Copyright (c) 2000-2012 the FFmpeg developers
  built on Jan 26 2012 00:22:40 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
  configuration: --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree --enable-gpl --enable-pthreads --enable-libopencore-amrnb --enable-decoder=liba52 --enable-libopencore-amrwb --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libfreetype --enable-libx264 --enable-libxvid --extra-cflags=-I/usr/local/cpffmpeg/include/ --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-version3 --extra-version=syslint
  libavutil      51. 34.101 / 51. 34.101
  libavcodec     53. 60.100 / 53. 60.100
  libavformat    53. 31.100 / 53. 31.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 60.100 /  2. 60.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  6.100 /  0.  6.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, flv, from 'hot.flv':
  Metadata:
    canSeekToEnd    : true
    creationdate    : Mon May 30 09:36:43 2011
  Duration: 00:09:10.10, start: 0.000000, bitrate: 186 kb/s
    Stream #0:0: Video: vp6f, yuv420p, 320x240, 163 kb/s, 30 tbr, 1k tbn, 1k tbc
    Stream #0:1: Audio: mp3, 11025 Hz, mono, s16, 16 kb/s
[buffer @ 0x1318f840] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[movie @ 0x13189820] seek_point:0 format_name:(null) file_name:/srv/www/vhosts/pimplicious.com/htdocs/data/watermark.png stream_index:0
Too many inputs specified for the "movie" filter.
Error opening filters!