Little test with my 650d in low light condition .

Adobe Premiere Pro (only curves adjustement)
Canon 18-55mm IS II stabilizer
Iso max 800: (320,640,800)
shutter speed: 1/24.360
picture style: technicolor
it's pretty nice because i never exceed 800 iso so i have a clean result and it was with my kit lenses 18-55mm IS II ,i have the 50mm 1.8 but i wanted wide angle shots and with the 50.. i would have been to easy in low light !
Technicolor cinestyle is really cool and it keeps a lot of detail even if it's seems noisy without CC (because it pushes black tones)
but with a little bit of work you can get nice shot ,i advice you this Picture Style !

Stabilisation was done with my Tripod xD