Depends on where the dent is (and what access is available from behind, but yes, in many cases very successfully.
I would recommend speaking to Ryan at Fixadent - I doubt there is a better 'dent-fixer' working in the UK today, and he is well versed in working with aluminium panels.
http://fixadent.co.uk/
2001 3.2 Circuit Blue Coupe with pop-ups!
"If you want to argue that The Best Car in the World is a supercar, go ahead. But there is only one that makes the grade. Only one that's built properly.
Gordon Murray knows.
Rowan Atkinson knows.
It's the Honda NSX."
(J. Clarkson)