Watson, Grint row over Lily Allen

Harry Potter actress Emma Watson slammed the phone down on Rupert Grint's friend Lily Allen, the Daily Star claims.

Allen, who turned to Grint for a "shoulder to cry on" after her split from DJ Ed Simons, was apparently met with a frosty reception when Emma Watson answered Grint's mobile phone.

A source, who spotted the Potter co-stars out on a shopping trip, claimed: "Rupert was trying on suits when his mobile rang in his jacket, which he’d hung next to Emma.

"She picked up the call and I heard her say: 'Why am I answering his phone? Because he’s rather occupied at the moment. Is there something you want?'"

The insider added: "Emma listened to the person on the phone for a bit and then she said: 'We’re busy right now, like you should be, Lily.'

"It was then Rupert’s turn to go berserk at Emma for being so rude to Lily and cutting her short. They really had a bicker about it all."