Hi! There are some festivals around.

Little Angel Theatre has a puppets on film fest every year including a night of puppet shorts. Our short film made it in this year.
http://www.littleangeltheatre.com/

Also, The Henson Foundation and Brooklyn Academy of Music do this every year.
http://www.bam.org/puppetsonfilm

There is also one connected to the Brighton, UK Fringe Fest called Best of Punched.

Those are good places to start.

I'm late commenting on this, but the Atlanta Film Festival is very puppet friendly and actively looking for puppet films right now. There was also a new puppet film festival held in Saskatchewan, Canada this year (not sure if they are doing it again, but hopefully!).

I'm surprised no one mentioned Handmade Puppet Dreams! That is an on-going, touring "mini film festival" that screens great puppet shorts that is organized by Heather Henson's company Ibex Puppetry.

I'm surprised no one mentioned Handmade Puppet Dreams! That is an on-going, touring "mini film festival" that screens great puppet shorts that is organized by Heather Henson's company Ibex Puppetry.

Er, look up...

Sorry, I missed that post!

Yes the Atlanta Film Festival is still accepting Puppet short films! Contact Beau Brown for more info!
https://www.facebook.com/beaubrownproductions