After four days, Iron Man 3 was running just 13% behind The Avengers at the same stage of its UK run, suggesting that the film would finish a lot closer to the superhero team-up (£51.9m) than to either of the earlier Iron Man movies. Seven days later, and it's a similar story, with Iron Man 3 at an impressive £24.6m as of Sunday night, a slim 18% behind Avengers at the same point of release. If it continues at a similar pace, Iron Man 3 should end up around £42-43m here. The first Iron Man film maxed out at £17.4m, while the sequel made it to £21.3m, so the third episode looks set to double its predecessor.