Katrina Kaif` sister Isabelle is all set for the release of her Hindi debut film "Time To Dance". She says she got a few very important tips from her superstar sister, to understand the big world of Bollywood.

"She (Katrina) watched the trailer and the songs that have come out so far, and after watching them she sent me a long message. I am in Agra now, shooting. So we are away from each other. She said to me, `in films, it is actually going to be more hard work than what you are thinking probably, so focus on the work first and do not get distracted by anything else`," Isabelle recalls.