Superstar Shah Rukh Khan has praised the forthcoming film "Phillauri" and has asked actors Anushka Sharma and Diljit Dosanjh "to keep believing in the impossible".Shah Rukh on Wednesday night took to Twitter to praise the cast, crew and the film. "'Phillauri' the attempt at doing what you believe in. Anushka Sharma, Diljit Dosanjh, Anshai (Director Anshai Lal), Karnesh (producer Karnesh Sharma) keep believing in the impossible," Shah Rukh tweeted ."Phillauri", a romantic comedy film, directed by Lal is co-produced by Anushka and Karnesh Sharma under the banner of Fox Star Studios and Clean Slate Films. Shah Rukh is currently busy shooting for director Imtiaz Ali's tentatively titled "The Ring". The film also stars Anushka.This film will mark the third collaboration between Shah Rukh and Anushka after "Rab Ne Bana Di Jodi" (2008) and "Jab Tak Hai Jaan" (2012).