door stuck

my driver side door appears to be stuck/locked. does anyone know how to get it open atleast so i can open the door properly and have a look/change the locks?

 

mk1 1990 uk

 Probably a spring inside the door. Keep trying with the key and it will probably open. Then look at this info
http://www.mx5oc.co.uk/forum/forums/t/269.aspx

 As above, it is also worth winding the window down and using both inner and outer handles repeatedly (easier when stood outside the car), this worked on a friends.