Buy 3 items from the Airwick, Dettol, Finish, Vanish ranges at Tesco from 12/07/17 to 02/08/17 (tesco.com until 23/08/17).
Upload your receipt and fill in the online form.
You will be emailed two codes to exchange at a Vue cinema for 2 tickets to a 2D film on Thursdays until 03/10/17.
Tesco usually have Dettol handwash or wipes on promotion starting at £1, hence the £3 pricetag - currently they have dettol handwash for 93p until 18/07.
And you get to keep the cleaning products too