A leading Catholic writer who has been diagnosed with advanced prostate cancer has had support from an unlikely source – the cast of the Avengers. Stratford Caldecott, a fan of Marvel comics as well as a distinguished author, first received support from the Hulk star Mark Ruffalo, who tweeted a picture of himself with the sign #CapforStrat. Mr Ruffalo was responding to a request from Stratford's daughter Sophie, who wanted some superhero help in urging Marvel Studios to send an advanced DVD copy of Captain America: The Winter Soldier so her father could watch the film at home – hence the #CapforStrat.