Thor: Ragnarok

Thor: Ragnarok is set to be one of the biggest events of Phase Three of the Marvel Cinematic Universe and, bearing that in mind, you might be surprised to see it so high up this list in terms of the level of risk involved – but the fact is it’s definitely quite a risky prospect and in no way a guaranteed mega-success.

The fact is, the two previous Thor movies have been some of the poorest performers in the franchise to date (Thor is tenth, Thor: The Dark World in sixth), so there’s clearly something about the Asgardian hero that doesn’t guarantee pulling power.

Admittedly, this movie is different. It will feature the Hulk, it’s a major cosmic event and the repercussions of Loki’s actions in Thor: The Dark World will be shown – which people will want to see – and that’s why it’s not even higher up the list.