Actor/rapper Ice Cube threatened to have Tracy Morgan thrown in jail on the set of new movie FIRST SUNDAY - by pouring alcohol on his court-ordered ankle bracelet. Comedian Morgan had to wear a SCRAM bracelet, which tests alcohol vapours on the skin, on his ankle throughout the shoot after violating his probation on a driving under the influence charge. And his co-stars decided to have some fun at the funnyman's expense. Cube says, "It was funny seeing Tracy do the movie with an ankle bracelet on that measured his alcohol level. We were always threatening to pour a drink on his leg and get him sent back to jail."