Comparisions to Motorcycle Diarries lets not go there.
Sohail Khan:: His performance is good in parts. His attempt to be "cool" is annoying while the serious/ emotional side suits him. Should stop showing off his muscular side every time.
Vatsal Seth:: Good looks, but needs more time to mark a stamp about his performance.
Amrita Arora & Riya Sen:: Force fit for the intro song and the inane comedy. The role should have been simply purged.
Mohnish Behl:: Small role but does it well (and age is catching up!)
Chapter #1: The best, IMO. Salman is OK and his patriotic lines seems to be inspired from Sunny's movies. Preity excels (thanks to her stint with the parallel cinema and it shows!). The confession to the uniform is not warranted. The young Jassi leaves a mark.
Chapter #2: Bobby is OK but it is Sunny who messes up big time. He attempts to do a Hum Dono Dev Anand and ends up creating a caricature. And what was Hrishitaa Bhatt was doing there?
Chapter #3:: Dino Morea doesn't have a role at all. Prateeksha Lonkar delivers a good performance. And its is Mithun who gives a performance which belongs to "Bollywood 1980". Now we know why he was lost in oblivion.
The transformation a.k.a enlightenment should have been a natural progression rather than in spikes. And the end was definitely OTT (the grey hair, school, Jassi et all). Why can't it be a silent realisation?
Had more time/ effort spent on screenplay/ script we could have seen another Rang De! And yes the original title "Mera Bharat Mahaan" would have been apt.