Avengers: Age Of Ultron will be in cinemas on 23 April 2015 in the UK and 1 May 2015 in the US. You can buy Avengers Assemble on Blu-ray for £15.51 from Amazon.co.uk.
Avengers Age Of Ultron TV spot: Black Widow wields Cap’s shield
The fan service just went up a notch in (probably) the final trailer