Last year quite a few Bollywood films made record collections of over Rs.100 crore at the box office, but Akshay Kumar claims that in next five years things will change so much that even Rs.400 crore won't seem a big amount.

"After five years, Rs.400 crore will be too small. Hits and flops keep on coming in its own way. I personally feel keep on working. I delivered 14 flops together seven years back, big deal. You just keep on working.

Records will keep on breaking. I challenge you within five years Rs.400 crore (collection) from India will happen," Akshay told reporters here.

Akshay starres like "Desi Boyz", "Thank You" and "Tees Maar Khan" didn't turn out to be box office wonders, but he is unperturbed.

"Every human being has to go from high to low from low to high. If you understand that then you will never be in trouble," the 44-year-old said.

Right now Akshay, known as one of the highest paid actors in Bollywood, is gearing up for "Housefulll 2" release. This is his third film with director Sajid Khan and he feels Sajid's strength is his immaturity.

"With Sajid, I have always enjoyed. Besides, shooting one will always keep laughing with him. That is another sign of immaturity when you say I have become matured. His strength is that he is immature. Because he is full of fun and enjoyment it can be shown in his films.

"He should not improve. He should be as he is. It is better if he doesn't improve himself. He tweaks the dialogues. He is very spontaneous," he said.

The actor describes "Housefull 2", coming out April 5, as a story driven movie and said: " 'Housefull 2' is an entertaining film. There is a story in the film. The story begins when Riteish Deshmukh wants to get married, while his father Mithun Da (Mithun Chakraborty) is a very strict man."

Produced by Sajid Nadiadwala, "Housefull 2" also features, Asin Thottumkal, John Abraham, Jacqueline Fernandez, Zarine Khan, Shreyas Talpade, Shazahn Padamsee, Rishi Kapoor, Randhir Kapoor and Boman Irani.