Justin Timberlake and Cameron Diaz had a 40-minute argument at a party, according to a report.The Hollywood couple released a joint statement when they split up, saying they still loved and respected each other.It's claimed there was very little love or respect as they clashed at a bash thrown by Prince after the Golden Globe awards.Justin's been linked with Scarlett Johansson since they were spotted together at an after-party for his film Alpha Dog.Meanwhile, Cameron is expected to spend some time with her parents as she looks for some TLC after the break-up.But there could be a problem because most of her stuff is still at the house she shared with Justin.© Independent Television News Limited 2007. All rights reserved.