Ashton Kutcher has been banned from partying while filming Two and A Half Men.

The actor was known among cast and crew for having a good time after a hard day's filming, but producers have ordered him to stop having lots of guests in his luxury $2 million trailer. "Every Friday night after they finished filming, Ashton would throw wild parties until the early hours. The parties were notorious and got way out of hand. It wasn't unusual to see famous friends stumbling out of his trailer," a source said.

However, orders from the bosses of the Warner Bros. lot after complaints were received haven't gone down well with the party loving star and he doesn't want to curb his behavior. "Ashton's not happy about the decision. He says he felt like king of the lot," the source added.

Meanwhile, Ashton was on his best behavior earlier this month, when he attended his twin brother, Michael's wedding in St. Simons Island, Georgia, with his girlfriend Mila Kunis. A source said the actor looked "chill and comfortable" during the ceremony and the following reception.