28 A very flexible chap
29 Think winter olympics
30 A lady olympic medallist in Beijing with a very non-british sounding surname
81 Can't think of a clue for this...it's a 6 letter word with 2 vowels neither of which are 'e'
82 apologise
83 Again cannot think of a clue. A 7 letter word with 2 vowels and an 'x'
91 Science fiction film made in 1975
99 Football film, first of a trilogy
Hope that helps. I sent mine in with blanks for 77 and 79, so cannot help anyone there.
Good luck.
fred