By Lizzie Smith
Last updated at 1:27 AM on 24th March 2010

As he partied until 1am with the cast and crew of Kick-Ass in London, Brad Pitt looked like any Hollywood bachelor, enjoying the single life.

But thanks to his private jet and just a few hours later the actor was back in Venice, reunited with his six children.

Brad was spotted talking with partner Angelina Jolie on their balcony in the Italian city yesterday, as they each cradled one of their young twins.

Brangelina

Where have you been? Angelina Jolie and Brad Pitt hold their twins in Venice following his return from London for the premiere of Kick-Ass

Holding the (six) babies: While Brad was in London Angelina and their children remained in Venice

Holding the (six) babies: While Brad was in London Angelina and their children remained in Venice

Perhaps he was filling her in on the previous night's gossip.

Pitt's arrival on the red carpet in London was unexpected, although he is a producer of the controversial film.

The 46-year-old refused to answer questions from the press, but found time to sign autographs for fans.

He then headed to pregnant model Claudia Schiffer's west London home for an exclusive afterparty.

Big night: Brad attended the premiere of Kick-Ass in London, then went to the afterparty at Claudia Schiffer's house in Notting Hill until 1am

It was a rare chance for Pitt to enjoy a night out.

While Angelina is filming The Tourist with Johnny Depp, Pitt has been in charge of their brood, supervising study and playtime, along with frequent visits to see their mother onset.

They have been pictured enjoying boat rides, eating ice cream and even meeting their estranged grandfather Jon Voight for the first time.

Pitt told Us magazine that living in Italy for the past month had been a 'lovely' experience for the whole family.

They have been based in a 15th century palazzo during their stay.

Brad signed autographs for fans from the red carpet

Unexpected visit: Brad signed autographs for fans from the red carpet