Film Music Reporter has learned that composer Paul Leonard-Morgan has taken over scoring duties on the upcoming thriller Limitless. Nico Muhly was the original composer on the movie as reported last year with his name even being listed in the film’s trailer. The final recording sessions for Paul Leonard-Morgan’s score are scheduled to take place this week. Limitless marks the composer’s first big American feature project. Leonard-Morgan’s previous credits include several British TV series, such as MI-5 (aka Spooks) and Silent Witness, as well as a number of British TV documentaries.  To find out more about the composer and listen to audio clips from his previous work, visit his official website. Limitless is directed Neil Burger and stars Bradley Cooper, Abbie Cornish and Robert De Niro. The film is set to open on March 18, 2011 by Relativity Media. Watch the trailer below and visit the official movie webpage for updates.