SING STREET DIRECTOR John Carney has apologised to Keira Knightley for rubbishing her performance in one of his films.

AP / Press Association Images AP / Press Association Images / Press Association Images

During an interview with the UK Independent, Carney had some choice words about Knightley, who starred in his 2013 film Begin Again.

I don’t want to rubbish Keira but you know it’s hard being a film actor and it requires a certain level of honesty and self-analysis that I don’t think she’s ready for yet and I certainly don’t think she was ready for on that film. I learned that I’ll never make a film with supermodels again.

He went on to claim that Knightley’s “entourage” made it difficult to get work done on set.

There was an almost immediate backlash to the comments – director Mark Romanek, who worked with Knightley on Never Let Me Go, called Carney an “arrogant sh*thead”.

Whoops!

We couldn't find this Tweet

AP / Press Association Images AP / Press Association Images / Press Association Images

Carney posted an apology to Knightley on Twitter last night, signing off as a “director who feels like a complete idiot”.

I’m ashamed of myself that I could say such things and I’ve been trying to account for what they say about me. In trying to pick holes in my own work, I ended up blaming someone else. That’s not only bad directing, that’s shoddy behaviour, that I am not in any way proud of…

Keira was nothing but professional and dedicated during that film and she contributed hugely to its success. I wrote to Keira personally to apologise, but I wanted to publicly, and unreservedly apologise to her fans and friends and anyone else who I have offended.

“It’s not something that I could ever justify, and will never repeat.”

DailyEdge is on Snapchat! Tap the button below to add!

More: Irish director labelled an ‘arrogant sh*thead’ after Keira Knightley comments>