You can buy Avengers Assemble on DVD for £10.99 or on Blu-ray for £14.99 from Amazon.co.uk.
Avengers crossover with Phineas and Ferb new clips
2 new clips from Phineas And Ferb: Mission Marvel, coming soon to Disney XD
2 new clips from Phineas And Ferb: Mission Marvel, coming soon to Disney XD