In an audacious take on his own cinematic history, Robert Downey Jr has labelled one of his own movies as potentially his worst ever performance, yet some die-hard fans insist it deserves a chance.

This isn’t about the box office bomb Dolittle or his much-maligned Shaggy Dog from the noughties.

We’re talking about the forgotten sequel to a beloved ’90s thriller, an early venture for the actor who would go on to dazzle us as Iron Man. The film in question?

1998’s U.S. Marshals, the follow-up to…