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Patrick Dempsey hinted earlier this week that he's taking a role in "Transformers 3" while months before Hugo Weaving's name has been attached to "Captain America: The First Avenger". No more guessing as the two big casting news have just been confirmed by their respective studios.

Although the plot for "Transformers 3" is still kept a secret, it is known that Dempsey will tackle a role "significant to the plot", being Megan Fox's boss. Fox herself, who plays Mikaela Banes in the film, has appeared on the Los Angeles set on Sunday, May 2 to do a pre-visualization before shooting begins in Africa, Moscow and China later this month. Paramount Pictures would like to have it in theaters across the U.S. by next summer, July 1 to be exact.

Meanwhile, Weaving is playing the bad guy in "Captain America", Marvel Enterprises confirmed. He's going to slip in the role of Johann Schmidt or known better as his alter ego, Red Skull. The actor who voiced Megatron in the first and second "Transformers" movies is expected to start working in London this summer. The movie is set to bow in U.S. theaters on July 22, 2011.