'Hrithik Roshan has raised the bar once again'

Here's what your favourite Bollywood celebrities are tweeting.

The first teaser of Siddharth Anand's upcoming film Bang Bang is out and several stars took to Twitter to shower praises on the team. Here's what they said:

Priyanka Chopra: 'Love the teaser of Bang Bang!! Katrina @iHrithik and Siddharth anand!! Killing it!!!'

Abhishek Bachchan: 'What a great teaser for #BangBang loved it! Well done bro braz @iHrithik , Katrina, Sid.'

Sonam Kapoor: 'Why are they so good looking!! This is too hot!'

Parineeti Chopra: 'What an amazinggggg teaser!!! Beacause you're Happyy tananananana.'

Arjun Kapoor: 'it's kinda scary how simple u make it all look...unreal.. 2nd Oct 1st day 1st show.'

Sujoy Ghosh: 'just saw the BANG BANG teaser. so proud of siddharth anand .. aap bhi dekho if you haven't already.'

Abhishek Kapoor: 'Smashing trailer of #bangbang. Raised the bar once again.'

Karan Malhotra: 'WHAT A BLOODY TEASER!!!!! BANG BANG IS GOING TO ROCK!!!!!!!!'

Punit Malhotra: 'Knocked it out of the park! Truly #BangBang. What a teaser!'

Sanjay Gupta: 'Shot at a fraction of KNIGHT AND DAY's budget, BANG BANG looks even better than the original. Well done FOX India.'

Riteish Deshmukh: 'Gandhi Jayanti pe sabse non violent film release ho rahi hai- BANG BANG - too excited, congrats.'

Kunal Kapoor: 'Blown away by the teaser of Bang Bang!! Its just phenomenal!!'

Bang Bang, which is a remake of the Tom Cruise-Cameron Diaz film Knight and Day, stars Hrithik Roshan, Katrina Kaif, Danny Denzongpa, and Jaaved Jaffrey.

.

Madhur Bhandarkar, who is known to seek real-life inspiration for his films, has started shooting for his next film Calendar Girls.

'Start shooting #CalendarGirls from today!High on concept, this youthful film has 5 new faces to be shot in a 40 day start-to-finish schedule,' the 45-year-old director tweeted.

'No matter how many films you have made in your career, the first day of shoot of your new film is always a mixture of excitement & nerves,' he added.

The film will revolve around models who gain popularity after featuring in famous calendars.

Veteran actor Amitabh Bachchan, who loves to connect with his fans on the social media, has started to share fun facts about India every Wednesday.

'Its #Wednesday #BachchanBol time ! The art of 'Navigation' was born in the river Sindhu 6000 years ago,' Bachchan tweeted.

'In fact the very word Navigation is derived from the Sanskrit word 'NAVGATIH'. The word navy is also derived from Sanskrit ‘Nou’,' he added.

Before the release of his next film Happy New Year, Bollywood star Shah Rukh Khan will perform in USA and Canada with the cast.

He shared the poster of the event and wrote: 'SEDUCE u...LOVE u...AMAZE u...go MAD with u! SLAM The Tour from the Happy New Year Team.' 

'USA & Canada Slammed in SEPT. 19th Houston, 20th New Jersey, 21st Toronto, 26th Chicago, 27th vancouver, 28th San Jose,' he added.

Happy New Year is slated to release on October 23.

Sunny Leone, who is currently shooting for next film Leela in Jodhpur, shared a picture with her co-star Mohit Ahlawat and tweeted: 'Prince Mohit ready to shoot!!'

'Producer Ahmed Khan and director Bobby Khan!! Good times!!' she added with another picture.

The film is going to be a passionate love story.