Superstar Aamir Khan, who is currently basking in the success of Sitaare Zameen Par, is having a cameo in Rajinikanth starrer Coolie, directed by Lokesh Kanagaraj. Aamir had confirmed it in an interview. Now, as per a report, Coolie will have a high-octane 15-minute climax scene, which will be an action-packed face-off between Aamir and Rajinikanth.