Five reasons to watch Vimaanam

- It is partly inspired by a real life story, that of hearing and speech impaired

Saji Thomas

, who made an ultralight aircraft on his own

- A movie based on the same theme was Vineeth Sreenivasan's Aby, which had an average run at the box office

- Prithviraj also appears as a 22-year-old in the movie and so, he had to look lean. He has lost around 10 kilos for the movie

- Lena also appears in two different avatars in the film, which are 25 years apart

- Prithviraj learnt flight instrumentation to play the part of a mechanic, who aspires to build the aircraft