Tom Riley fans can now pre-order Ill Behaviour on region 2 DVD from Amazon UK, prior to its release on 11th September 2017. There appear to be no extras included, and definitely no blooper reel - as according to an interview with Jessica Regan to promote the show, there wasn't one.
At the wrap party we were told that we didn’t really have a blooper reel because none of us messed up our lines, you had to know them. We didn’t have time to mess them up. The thing is it looks so cinematic on screen and I love that.
Ill Behaviour will begin weekly broadcast on BBC 2 at 10pm on Sunday 20th August 2017. If you haven't watched it yet, the three episodes are still available on iPlayer.