Pretty sure it was Siggy, not Charly, who died during filming - my non-pilot kid brother remembers meeting Charly some time after that (and found him modest, patient with questions and extremely pleasant company)
Although my first employer in civvy street had technically qualified me on Bo105, I didn't actually learn to fly and operate it even remotely how I should've until I did the NLB (Scottish and Isle of Man lighthouses) training. It was here that we did a speed-reducing straight-and-level exercise around 400ft agl at the end of which, around 30-40kts, the instructor told me to put in hard right cyclic. The aircraft promptly fell out of the sky - opposite cyclic having no effect at all - and as Crab says it could only be recovered with collective just like in the Lynx.