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Paramount Pictures and producers Tom Cruise and J.J. Abrams have officially lit the fuse on "Mission: Impossible IV," setting Josh Applebaum and Andre Nemec to write the screenplay.

While those scribes aren’t big feature names yet, they join a roster of writers who transitioned from Abrams TV series creations to pen the features he directs and produces through his Bad Robot banner.

Applebaum and Nemec spent four seasons with Abrams as co-exec producers of "Alias," and they will script "M:I 4" based on a story Abrams wrote with them.

While the only other commitments so far are for Cruise and Abrams to produce the film together, sources said that Cruise’s character, Ethan Hunt, will certainly be involved in an onscreen capacity.

Pic is aimed for a 2011 release.