Second child ... Sacha Baron Cohen and Isla Fisher.

Embarrassing ... Sacha Baron Cohen with wife, Isla Fisher. Photo: AP

Australian actress Isla Fisher would rather her husband stayed at home as to not embarrass her in public.

Sacha Baron Cohen says his wife is so tired of his slip-ups at social functions that she'd prefer he stays home: "She now tries to avoid going out of the house with me."

In fact Cohen says he would prefer to turn up to celebrity events as one of his many comic characters - because he's an embarrassment when he arrives as himself.

The funnyman admits he's hopeless at parties and premieres when he doesn't have a beard or a moustache to hide behind - because he doesn't recognise his Hollywood peers.

"I don't really watch a lot of television or film, so I don't really recognise some of the faces.

"I went to one dinner recently with Warren Beatty and Annette Bening and a few other people around quite a small dinner table and... I turned to Annette Bening and said, 'You should have won an Oscar for The Kids Are All Right...' and she stared at me and she said, 'You don't know who I am, do you?' It was Diane Keaton," he says.

"I was embarrassed. I didn't know what to say... so I just asked... 'What was it like to make love to Woody Allen?' She did get up and leave."

WENN