Two-pass MPEG4 encoding with mencoder

I keep forgetting this, so I’ll put it here for everyone (including me) to see:

mencoder dvd:// -o movie.avi \
  -oac mp3lame \
  -ovc lavc -lavcopts \
  vcodec=mpeg4:mbd=1:vqmax=10:lmax=10:keyint=130:vpass=1:turbo \
  -sid 3 -aid 130 \
  -vf scale=720:405,expand=720:576:0:25:1 \
  -spuaa 4

For the second pass, change vpass=1:turbo to vpass=2.