Gunn’s careful to keep the focus on the central five, but certainly proves himself capable of the bigger canvas. The film really pops visually, with an admirably bright color palette (DP Ben Davis doing excellent work), and though there are occasionally some geography issues, the action is mostly satisfying.

Overall, the writers have crafted a well-articulated universe with distinct settings and relatable, compelling characters devoted to a thrilling quest for redemption.

The fun of it – and Guardians of the Galaxy specialises in fun, served by the sugar-sprinkled ice-cream-scoopload – is in seeing this odd quintet bluster through space battles and alien brawls that would have defeated anyone smarter and better-equipped. Just as the team makes do with the junk they find around them, the film feels like a mound of gems culled from decades of pop-culture scavenging.

Guardians of the Galaxy is undoubtedly a flashy space opera, but if you are on board with that, it's a resounding success that takes a seat at Marvel's top table and suggests there could still be life after The Avengers.

Mad, marvellous and all kinds of sci-fi magical, Guardians Of The Galaxy is Marvel’s riskiest but most surprising success yet.