TESCO are currently running a 2 For £10 promotion on selected Blu-Ray and DVD movies. One of the better offers is both Despicable Me movies for £10.
The films on their own are £8 for DM Blu-Ray and £10 for DM2 DVD. Looking at it that way, it makes DM Blu-Ray free!
Both movies come with an UltraViolet copy as well.