This only works if you're a Prime customer or use the 30 day trial offer.
SIgn up for Audible, who are offering a three month trial of their service and a £10 credit for goods sold by Amazon (rather than the marketplace of fufilled by Amazon).
Once you get the confirmation email crediting your Amazon account with £10, go to either the NOW TV 3 month Entertainment Pass or NOW TV 2 Months Movies Pass. (It's still not called the Sky Cinema Pass on there yet).
Make sure you then choose the pass which is sold by Amazon as the £10 credit won't be added if it's sold by a Marketplace seller and you'll be charged £5 for the pass, rather than the £15.
You can also use the credit against any other Amazon product or another pass that I haven't mentioned.
Now this is important, CANCEL the Audible membership after you've purchased your pass, otherwise you'll be charged £7.99pm for the Audible service in three months time.
Networking Spec - ISP: TalkTalk VDSL2 @ 76mbps | Amazon Fire TV Cube 2nd Gen, Chromecast 3rd Gen WiFi, Motorola Moto G9 (Android 11), Dell PC with Windows 10 Home Edition using Now TV Player.