Aanand L Rai's ambitious "Zero" may have crashed at the box office but the director is not disheartened with the response. The filmmaker views the experience as a lesson learnt.

The Shah Rukh Khan-starrer, which also featured Anushka Sharma and Katrina Kaif, was billed as one of the biggest films of 2018. "I won't say I am disappointed. I will need to understand (what went wrong). This is the story I wanted to say and I made it. After making 'Ranjhaanaa' and 'Tanu Weds Manu' and the second one, this film ('Zero') was due for me to make... To take a certain flight and I have not landed on it properly.