Overlay image to video using Ffmpeg

i want set the image, with a 80% opacity overlay to video?

ffmpeg -i in.mkv -af "pan=stereo|c0<c0+0*c1|c1<c0+0*c1,aeval=val(1)|-val(1)" -vf "scale=640:360,boxblur=0:0 [mv]; movie=image.jpg [f1]; [mv][f1]overlay=0:0; opacity=0.8" -preset ultrafast out.mp4

[AVFilterGraph @ 040b9c0 Error opening filters!

Help me,pls