Imran played by Farhan Akhtar is seen having a fear of skydiving in the movie but in real life he's a certified skydiver and Arjun played by Hrithik Roshan is a certified scuba diver but his character is afraid of water.
Katrina Kaif's introduction scene on the beach was shot on a nude beach. The production crew had to continually request people to move out of the frame.
Hrithik said that it was his then wife Sussane who pushed and convinced him to do this film. Hence her name appears in the acknowledgements at the start.
The La Tomatina festival shown in the movie was re-created in Buñol, Valencia, Spain with almost 16 tons of tomatoes specially flown in from Portugal.
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