The actor plays a RAW agent in the Saif Ali Khan-Katrina Kaif starrer thriller, directed by Kabir Khan of "Bajrangi Bhaijaan" fame.
"In 'Phantom' I play a very neat and urban character. It was a good change as I have never done a neat character in Bollywood, who is well educated, smart, speaks English, wears good clothes and is prim and proper.
"Phantom" is scheduled to release on August 28.
Zeeshan will also be seen as a comical villain in Abhishek Bachchan-Rishi Kapoor starrer "All Is Well", which opened this Friday.
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The actor said juggling both the films together, with starkly different characters, was exciting.
"The shift between the comical and the serious characters was exciting. Sometimes, I used to wrap up the shoot of 'All Is Well', where I did a lot of physical comedy and then on my way get into the zone of my other character for 'Phantom', which was completely different."